Smart Grid Patent Analysis

Smart Grid Patent Analysis

Landscape & Commercialization

11 Feb, 2013

Copyright © 2013, INDUS TechInnovations www.relecura.com

http://www.relecura.com/


PART A

Assignee Landscape (considering all geographies)

Potential Licensees (considering all geographies)

Potential Acquisition Targets (considering US Grants)



Objective – Assignee Landscape

Preliminary survey of the Smart Grid assignee landscape and first-cut identification of patent asset holders in Smart Grid technology.

Workflow

1. A search is done using Relecura to identify a superset of patents related to Smart Grid technologies in all geographies using appropriate

keywords and IPC Codes connected with the various sub-technologies.

2. The results prior to 1993 are removed and the resulting set is grouped by application number. This set has been further analyzed.

3. The top IPC codes filed for patents under each related sub-technology are summarized.

4. The patent asset holders in Smart Grid technology are identified after combining the assets from the various sub-technologies.

5. The top patent asset holders in individual sub-technologies are given.

Smart Grid sub-technologies included in this analysis

1. Integrated Communication

2. Software

3. Smart Meters

4. Sensing

5. Substation Automation

6. Distribution Automation

7. Demand Response

8. Security

9. Advanced Transmission

10. Vehicle-to-Grid Charging Infrastructure

11. Integration of power generation technologies

12. Other technologies

Executive Summary



Objective – Potential Licensees / Potential Acquisition Targets

Identification of potential licensees and the potential acquisition targets for patents addressing each of the sub-technologies related to Smart

Grids.

Workflow

1. Companies identified as Potential Licensees are those that have an active filing history of patents with a priority date of 2008 or later (all

geographies).

2. Companies identified as Potential Acquisition Targets are typically small or medium size companies holding US grants with a priority date

of 2008 or earlier.

3. The patents held by the Potential Acquisition Targets have not been verified for enforceability status (i.e. whether they have expired or

have been abandoned)

4. The number of US grants given against each Potential Acquisition Target is indicative. A more comprehensive search is required to

identify all the US patent assets held by the listed companies.

Executive Summary Contd.


Ways in which the current study could be extended

1. More comprehensive mining and cleaning up to determine all patent assets in this technology area.

2. More comprehensive mining to determine patent assets held by individual companies.

3. Including additional sub-technologies as appropriate.

4. Including additional relevant IPC codes as appropriate.

5. Scrubbing of patent assets held by each assignee for enforceability (expired/abandoned).

6. Study of transaction data to get additional leads on potential licensees and acquisition targets.


Top IPC Codes– Smart Grid Technology


S. No. Subtechnology Class Codes

1 Communications H04B 3/54, H04L 12/28, H02J 13/00, H04L 12/56, H02J 17/00, H04B 3/56, G06F 19/00, H04L 29/06, H04B 1/38, H04Q 9/00, H02J 3/00, H04M 11/04, H04B 7/005, G08C 17/02, H04B 7/26, H04M 11/00, H02J 7/00, G06Q 10/00, H04L 12/26, H04B 7/00

2 Software G06F 19/00, H02J 13/00, H02J 3/00, H02J 7/00, G06Q 10/00, G06Q 50/00, G06F 17/00, H02J 3/38, H04L 12/28, G05B 23/02, G06F 15/16, G06F 1/28, H02J 3/14, H04W 52/02, G05D 11/00, G06Q 30/00, H04L 29/06, G06F 13/00, G06F 17/60, G06F 9/445

3 Substation Automation H02J 13/00, G05B 19/418, H02J 3/00, H04L 29/06, H02H 7/26, G06F 19/00, G06F 15/16, H04L 12/26, G01R 31/08, H04L 12/24, G05B 19/042, G06Q 50/00, H02H 3/00, G06F 17/00, H04L 12/56, G01R 31/327, H02B 1/24, G06F 1/28, H02H 7/22, H04L 29/08

4 Sensors G01R 31/02, G01R 19/00, H02J 13/00, G01R 15/18, G01R 31/08, H02J 3/38, G01R 31/00, G01R 31/12, H02P 9/04, H02J 3/00, H02P 9/00, H02J 3/18, H04B 3/54, G08C 17/02, H02M 7/48, H02H 1/00, G01R 21/00, G01R 15/24, G01R 19/25, G01R 31/06

5 Distribution Automation H02J 13/00, H02H 1/00, G06F 19/00, H02H 7/26, H02H 3/00, H02J 3/00, G06Q 10/00, H04L 12/28, G01R 31/08, G06F 17/00, G06K 7/10, H04B 3/54, H04L 12/56, H04M 11/04, G06K 7/14, G06F 1/26, G05B 19/418, G05B 23/02, H04L 29/06, G01R 31/02, G06Q 50/00

6 Demand Response G06F 1/26, G06F 1/32, H02J 13/00, G06Q 50/00, H02J 3/00, G06F 19/00, H02J 3/14, G06Q 10/00, G06F 1/28, G05D 11/00, G01R 21/00, G06Q 30/00, G06F 17/00, H02J 7/00, G05D 3/12, G06F 15/16, B60L 11/18, G05B 11/01, H04L 12/28, G06Q 40/00

7 Security H02J 13/00, H02J 3/38, H02J 3/00, H02J 3/18, H02J 7/00, H02H 7/26, H02H 9/04, H02J 3/01, H02N 6/00, H02H 3/00, H02J 9/06, F03D 9/00, H02H 3/20, H02H 3/32, H02P 9/10, H02H 3/08, H02P 9/04, H02P 9/00, H04N 7/18, G06Q 50/00, H02B 1/04, H02H 7/22, H02H 9/08, H02J 7/02

8 Advanced Transmission H02J 3/36, H02J 3/18, H02J 3/00, H02J 1/00, H02M 7/757, H02H 7/26, H02J 3/38, H02J 13/00, F24F 11/00, H02J 3/24, G01R 31/00, G05D 23/19, H02M 7/797, H01B 3/44, G06F 19/00, H02M 1/12, F03D 9/00, H02M 7/48, H02H 7/12, H02J 3/01, H02M 1/00

9 Vehicle-to-Grid Charging

Infrastructure

H02J 7/00, B60L 11/18, B60W 20/00, H02J 7/04, H01M 10/44, H02J 7/02, G06F 19/00, B60W 10/08, G06F 17/00, H01M 10/50, B60W 10/26, G06Q 50/00, G06F 1/26, B60K 1/04, G06Q 30/00, H01M 10/46, H01M 2/10, B60W 10/06, H01M 8/04, B60K 6/46

10 Integration of Power Generation

Technologies H02J 3/38, F02C 6/16, F03D 9/00, G06F 1/26, G06F 19/00, F02C 6/06, H02J 7/00, G06F 1/28, H01L 31/042, E04D 13/18, F02C 3/30, F02C 7/08, F03D 7/04, F03G 7/00, H02J 3/00, H02J 9/06

11 Smart Meters G01D 4/00, G08C 17/02, H02J 13/00, G01R 22/00, H04Q 9/00, G08C 15/06, G06F 19/00, G08B 23/00, H04M 11/00, G08C 19/00, H04L 12/28, G01R 21/00, G06Q 50/00, H04B 3/54, G01R 21/133, G01R 11/00, H02J 3/00, G06Q 30/00, G08C 17/00, G06F 15/16

12 Others H02J 7/00, G06F 17/50, G06F 19/00, H02J 17/00, G06F 1/26, G06Q 10/00, H02J 13/00, H04L 12/56, G06K 9/00, G06F 15/16


Top Patent Asset Holders – Smart Grid Technology


36

38

42

44

45

48

48

48

57

58

58

61

66

67

69

72

74

75

76

79

95

101

101

104

110

118

124

126

127

144

146

150

188

280

390

406

526

882

923

1085

0 200 400 600 800 1000 1200

WHIRLPOOL CO

SEARETE LLC

KYOCERA CORP

ALPS ELECTRIC CO LTD

AMBIENT CORP

ELECTRO INDUSTRIES

V2GREEN INC

NISSIN ELECTRIC CO LTD

WITRICITY CORPORATION

SANYO ELECTRIC CO

LEVITON MANUFACTURING CO

GM GLOBAL TECH OPERATIONS INC

DENSO CORP

CHUGOKU ELECTRIC POWER

FORD GLOBAL TECH LLC

SCHNEIDER ELECTRIC

SCHWEITZER ENGINEERING LAB INC

TOYOTA MOTOR

HONDA MOTOR CO LTD

AREVA T & D UK LTD

TDK CORP

POWER MEASUREMENT LTD

SQUARE D CO

KOREA ELECTRONICS TELECOMM

CHINA ELECTRIC POWER RES INST

ALCATEL LUCENT

HONEYWELL INT INC

ELSTER ELECTRICITY LLC

SILVER SPRING NETWORKS INC

KOREA ELECTRIC POWER CORP

CURRENT TECH LLC

EATON

SUMITOMO ELECTRIC INDUSTRIES

ITRON INC

LG ELECTRONICS INC

TOSHIBA CORP

SIEMENS AG

PANASONIC CORP

GEN ELECTRIC

ABB


43

44

57

85

87

123

123

130

134

177

246

255

256

715

0 200 400 600 800


ALPS ELECTRIC CO LTD


TDK CORP

FUJITSU LTD

CURRENT TECH LLC

TOSHIBA KK

SIEMENS

SUMITOMO ELECTRIC INDUSTRIES

ABB

MITUSBISHI

LG

GEN ELECTRIC

PANASONIC

Technology: Communication


POTENTIAL LICENSEES

PANASONIC

GEN ELECTRIC

LG ELECTRONICS

ABB

MITSUBISHI

SIEMENS AG

POTENTIAL ACQUISITION TARGETS

No. of US Grants

CURRENT TECH LLC 65

POWER MEASUREMENT LTD 29

THE ARKADOS GROUP 12

AMBIENT CORP 11

Top Patent Asset Holders


Technology: Software


11

11

16

17

17

21

21

68

177

228

0 100 200 300

SERVER TECH INC

WHIRLPOOL CO

SAMSUNGELECTRONICS CO

LTD

GRIDPOINT INC

HONEYWELL INTINC

POWERMEASUREMENT

LTD

AREVA T & D INC

SIEMENS AG

GEN ELECTRIC

ABB RESEARCHLTD

POTENTIAL LICENSEES

ABB RESEARCH LTD

GEN ELECTRIC

SIEMENS AG

POTENTIAL ACQUISITION TARGETS No of US Grants


YINGCO ELECTRONIC INC. 4

SQUARE D CO 3

ELUTIONS INC 3



Technology: Smart Meters


16

17

18

22

23

24

27

29

29

30

33

33

37

38

45

47

52

54

54

79

99

252

261

0 50 100 150 200 250 300

EANDIS

GRIDPOINT INC

ALLURE ENERGY, INC.

ONZO LTD

ENEL SPA

ABB

BADGER METER INC

ELECTRO IND GAUGE TECH

CONSERT INC

IBM

V2GREEN INC (ACQUIRED BY …

ACCENTURE

CURRENT TECH LLC

SENSUS USA INC.


TRILLIANT NETWORKS INC


PANASONIC CORP

LANDIS & GYR AG

SIEMENS AG


GEN ELECTRIC

ITRON INC POTENTIAL LICENSEES

GEN ELECTRIC

ITRON INC

SIEMENS AG

PANASONIC

ACCENTURE


ELSTER ELECTRICITY LLC 39


LANDIS+GYR INNOVATIONS, INC 19

ELECTRO INDUSTRIES 16

CURRENT TECH LLC 15

SILVER SPRING NETWORKS 13



Technology: Sensors


14

16

19

22

30

31

35

36

40

45

51

60

80

94

97

152

188

0 50 100 150 200

ROBERT BOSCH GMBH


YASKAWA ELECTRIC CORP



MEIDENSHA ELECTRIC MFG CO LTD


HONEYWELL INT INC

NIPPON

SQUARE D CO

SUMITOMO

EATON CORP

SIEMENS AG

FUJI ELECTRIC CO LTD

PANASONIC CORP

GEN ELECTRIC

ABB POTENTIAL LICENSEES

ABB

GEN ELECTRIC

EATON

SIEMENS AG

PANASONIC


POWER MEASUREMENT 14

ELSTER ELECTRICITY LLC 11

SQUARE D CO 11

SUNDSTRAND CORP 11

LEVITON MANUFACTURING CO 7



Technology: Substation Automation


5

8

9

9

11

14

14

18

43

299

0 100 200 300 400


CURRENT COMMUNICATIONS

SERVICES, LLC

HYUN DAI HEAVY IND CO LTD

SIEMENS AG

ACCENTURE GLOBAL SERVICES LIMITED


TOSHIBA CORP

SCHWEITZER ENGINEERING LAB INC

GEN ELECTRIC

ABB RESEARCH LTD


CURRENT COMMUNICATIONS SERVICES 4

ELECTRO INDUSTRIES 4

SCHWEITZER ENGINEERING LAB INC 4

RUGGEDCOM INC 4

POTENTIAL LICENSEES

ABB

GEN ELECTRIC

SCHNEIDER ELECTRIC



Technology: Distribution Automation


7

7

8

11

11

14

16

17

19

19

21

29

31

34

37

50

65

73

73

157

0 50 100 150 200

CURRENT COMMUNICATIONS …

LAGOTEK CORP

ELECTRIC POWER RES INST

ELECTRO INDUSTRIES



HONEYWELL INT INC

SCHNEIDER ELECTRIC USA INC

EATON CORP

TOSHIBA CORP

S & C ELECTRIC

SQUARE D CO


SCHWEITZER ENGINEERING LAB



SIEMENS AG

CURRENT TECH LLC

GEN ELECTRIC

ABB POTENTIAL ACQUISITION TARGETS

No of US Grants

CURRENT TECH LLC 37


SILVER SPRING NETWORKS INC 12

CURRENT COMMUNICATIONS SERVICES, LLC

6

POTENTIAL LICENSEES

ABB

GEN ELECTRIC

SIEMENS AG

SCHNEIDER ELECTRIC

EATON CORP



Technology: Demand Response


10

12

12

13

14

18

19

22

23

23

32

32

37

37

103

0 20 40 60 80 100 120

ITRON INC

CISCO TECH INC

HITACHI LTD

ROCKWELL AUTOMATION TECH INC


ALLURE ENERGY, INC.

TOSHIBA KK

WHIRLPOOL CO

LG ELECTRONICS INC

GRIDPOINT INC (ACQUIRED V2GREEN)

V2GREEN INC

CONSERT INC

IBM

ACCENTURE

GEN ELECTRIC


GRIDPOINT 6


POTENTIAL LICENSEES

GEN ELECTRIC

ACCENTURE

IBM

LG

WHIRLPOOL



Technology: Security


POTENTIAL LICENSEES

ABB

5

5

6

11

13

0 5 10 15

GRID NET INC

ALSTOM

GUANGDONG POWER GRID CORP

ABB




Technology: Advanced Transmission


8

8

10

11

12

14

20

21

31

37

48

133

353

0 100 200 300 400

ELECTRIC POWER RES INST


PRYSMIAN CAVI E SISTEMI ENERGIA S.R.L.

CONVERTEAM TECHNOLOGY LTD


SOUTHERN POWER GRID TECHNOLOGY

ALSTOM

HONEYWELL INT INC

AREVA T & D UK LTD

GEN ELECTRIC


SIEMENS

ABB

POTENTIAL ACQUISITION TARGETS No. of US Grants

TRANE INT INC 5

CARRIER CORP 4

LEVITON MFG CO LTD 3

POTENTIAL LICENSEES

GEN ELECTRIC

ABB

AREVA T&D

SIEMENS

ALSTOM

HONEYWELL



Technology: Vehicle-to-Grid Charging Infrastructure


10

11

12

14

16

16

19

23

40

48

49

101

0 20 40 60 80 100 120

SONY CORP

CONS EDISON CO NEW YORK INC

SEARETE LLC

HONDA MOTOR CO LTD

AEROVIRONMENT INC

QUALCOMM INC

IBM

COULOMB TECHNOLOGIES INC

GENERAL MOTORS

V2GREEN INC


GEN ELECTRIC

POTENTIAL LICENSEES

GEN ELECTRIC


GENERAL MOTORS


CHRYSLER GROUP LLC 9

OSHKOSH TRUCK CORP 5

V2GREEN, INC. 3



Technology: Integration of Power Generation Technologies


2

3

3

4

0 1 2 3 4 5

V2GREEN INC

ECOLE POLYTECH


GEN ELECTRIC

POTENTIAL LICENSEES

GEN ELECTRIC


ENERGY STORAGE AND POWER LLC 6



PART B

Smart Grid Landscape (considering all geographies)



Filing Trends - All Geographies


There is a drop in the trend-line post 2010 as filed applications are yet to be published.


Geographical Distribution



Top IPC Codes – All Geographies

IPC Code Description IPC Code Description

H04B 3/54 Systems for transmission via power distribution lines H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

H04L 12/28 Data switching networks (LAN, WAN) H04L 12/56 Packet switching systems

H02J 13/00 Circuit arrangements for providing remote indication of network conditions

G06F 19/00 Digital computing or data processing equipment or methods, specially adapted for specific applications

G06F 1/32 Data processing for Power Regulation/supply means for saving power

H01M 8/04 Fuel Cells - Auxiliary arrangements or processes

G06F 1/26 Data processing for Power Regulation/supply means H04L 29/06 Communication control; Communication processing characterized by protocol



IPC Code Description

H04B 3/54 Systems for transmission via power distribution lines

H04L 12/28 Data switching networks (LAN, WAN)



G06F 1/26 Data processing for Power Regulation/supply means

H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

H04L 12/56 Packet switching systems


H01M 8/04 Fuel Cells - Auxiliary arrangements or processes

H04L 29/06 Communication control; Communication processing characterized by protocol

Top IPC Codes - Description

Back to IPC 2D chart Back to IPC 3D chart



Filing Date

No

. o

f reco

rd

s

IPC Filing Trends (2D view) – All Geographies

0

50

100

150

200

250

300

350

400

450

1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012

H04B 3/54

H04L 12/28

H02J 13/00

G06F 1/32

G06F 1/26

H02J 7/00

H04L 12/56

G06F 19/00

H01M 8/04

H04L 29/06

Click here for IPC Description



H04B 3/54

H04L 12/28

H02J 13/00

G06F 1/32

G06F 1/26

H02J 7/00

H04L 12/56

G06F 19/00

H01M 8/04

H04L 29/06

0

250

500

19

93

19

94

19

95

19

96

19

97

19

98

19

99

20

00

20

01

20

02

20

03

20

04

20

05

20

06

20

07

20

08

20

09

20

10

20

11

20

12

34 60 50 45 80 76 116 146

337 338431

357 364436

308 348249 219 152

32

14 17 18 23 46 50 68147

243 178 241375

296 259 197 241133 110 86 20

14 17 18 23 46 50 68147

243 178 241375

296 259 197 241133 110 86 20

21 32 69 62 57 46 45 54 119 115 124 154 138 143 156 143 184 174 13518

8 15 37 26 39 45 42 48 100 83 118 143 114 100 101 124 153228

15437

3 7 12 16 20 28 18 33 45 31 57 59 56 65 83 137245

355247

47

6 3 7 3 16 29 22 51 113 89 122 174 131 94 81 100 69 82 68 20

2 5 2 8 14 6 6 15 86 74 94 91 74 112 102 115 140 161 14230

5 5 5 6 10 9 12 22 76 96 117 130 165 125 136 105 58 52 16 5

3 1 10 7 23 20 32 74 120 76 123 129 98 59 49 54 51 72 57 9

IPC Filing Trends (3D view) – All Geographies

Filing Date

No

. o

f reco

rd

s




Top Assignees (All Geographies)



PART C

Assignees (considering US Grants)

Potential Acquisition Targets (considering US Grants)



Objective

Preliminary survey of the Smart Grid IP landscape and a first cut identification of patent asset holders in this technology for possible IP

acquisition.

Workflow

1. A search is done using Relecura to identify a superset of patents related to Smart Grid technology using different keywords

connected with the various sub-technologies related to Smart Grid technology.

2. The top IPC codes for filings in the 2008-2012 period are identified.

3. In addition, patents from the 2002-2007 period for the same top IPC codes are identified.

4. Patent holders of assets in (2 + 3) are listed.

5. Potential acquisition targets are identified within the above list.

6. The analysis is restricted to US granted patents.

Smart Grid sub-technologies included in this analysis

1. Integrated Communication and Software

2. Smart Meters

3. Sensing

4. Substation Automation

5. Distribution Automation

6. Demand Response

7. Security

8. Advanced Transmission

9. Vehicle-to-Grid Charging Infrastructure

10. Integration of power generation technologies

Executive Summary



G06F 1/32

H04L 12/28

G06F 1/26

H04B 3/54

G06F 19/00

H04L 12/56

G06F 15/16

G06F 1/00

H04L 29/06

H04M 11/04

H02J 7/00

H02J 13/00

H04B 1/38

H04L 29/08

G06F 17/00

G05B 11/01

0

187.5

375

19

93

19

94

19

95

19

96

19

97

19

98

19

99

20

00

20

01

20

02

20

03

20

04

20

05

20

06

20

07

20

08

20

09

20

10

20

11

20

12

624 35 42 42 28 22 27

47 44 35 4427 40 48 35 23

7 3

4 7 10 10 16 7 1649

30 30 39

7541 31 29 19 18 8 7

12 11 18 30 16 27 25 35 2541 45 34 22 33 39

14 7 2

6 9 9 14 20 14 20 27 28 3152

26 19 11 6 10 4 4 3

2 1 2 4 5 3 3 7 21 26 26 29 24 32 29 24 19 9 9

4 1 4 1 9 7 13 23 16 25 27 37 26 14 14 6 10 3 5

4 2 8 7 623 14 17 14

30 24 22 3013 13 6 6

2 5 13 8 14 3 2 1 7 3 10 24 35 21 35 30 194 1

1 1 10 217 4 11 24 22 18 18 23 25 12 5 4 9 7 2

6 4 5 3 17 8 13 20 21 19 3216 17 6 12 8 2 3 1

2 5 9 5 13 6 10 12 10 10 15 19 10 8 9 20 2710 7

7 13 11 18 20 14 16 15 14 1032

12 14 8 1 1

1 2 8 12 6 10 9 12 9 8 20 7 17 11 11 7 10 2

11 2 14 4 10 13 16 14 17 25 12 8 3 3 6

2 5 4 3 3 10 4 11 5 9 21 9 17 13 14 11 7 3

1 2 2 3 3 3 2 6 19 18 25 22 225 7 8 3

Filing Date

No

. o

f reco

rd

s

Top IPC codes based on filing year (US grants only)




208

292

394

563

674612

659

805

1038 1030

1280

1453

1180 1200 1220

1030

803

488

185

100

200

400

600

800

1000

1200

1400

1600

Filing Date

Filing trends of Smart Grid Patents (US grants only)

Fall-off in number of patent documents as analysis is restricted to US grants alone. Applications filed post 2007 are awaiting grant.

No

. o

f reco

rd

s



0

10

20

30

40

50

60

70

6864 62 62

54 5350

45

39 38 36 35 35 33 33 32 31 30 30 30

IPC Code

No

. o

f reco

rd

s

Top IPC codes for Smart Grid filings 2008-2012 (US grants only)








H04B 3/54 Systems for transmission via power distribution lines


H04L 12/56 Packet switching systems

G06F 15/16 Combinations of two or more digital computers for simultaneous processing of several programmes

G06F 1/00 Digital Data Processing

H04L 29/06 Communication control; Communication processing characterized by protocol

H04M 11/04 Telephonic communication systems specially adapted for combination with other electrical systems



H04B 1/38 Transceivers

H04L 29/08 Transmission control procedure


G05B 11/01 Electric Automatic Controllers

Top IPC Code Description (US grants overall)

Back to chart








G06F 1/00 Digital Data Processing


G05D 3/12 Control of position or direction using Feedback

G05D 11/00 Ratio control

G08B 1/08 Systems for signalling using electric transmission

G06F 15/16 Combinations of two or more digital computers for simultaneous processing of several programmes

G05D 5/00 Control of dimensions of material

G05D 9/00 Level Control


H04B 7/00 Radio transmission systems, i.e. using radiation field

H04M 1/00 Substation equipment

G08B 21/00 Alarms responsive to a single specified undesired or abnormal condition

H04W 4/00 Services or facilities specially adapted for wireless communication networks

F03D 9/00 Combinations of wind motors with apparatus driven thereby

G06F 15/173 Interprocessor communication using an interconnection network

H04B 1/38 Transceivers

Top IPC Code Description (US grants filed 2008-2012)

Back to chart



Potential Acquisition Targets (consider US grants only)

• List of assignees is not comprehensive and patent counts are indicative. • Listed assignees may hold additional assets in the technology area. • Transaction analysis may suggest additional acquisition targets. • Search strings need to be improved to capture all relevant sub-technologies. • Manual screening and scrubbing of patents will be required to confirm relevance to technology

area and expiry status.

Current Patent Asset Holder Patent count

GEN ELECTRIC 58

PANASONIC 52

LG ELECTRONICS 40

CURRENT TECH LLC 28

ABB 19

HITACHI 18


SIEMENS 16

WELLS FARGO BANK (8 US grants from ITRON INC) 13

SILVER SPRING NETWORKS INC 12

TOSHIBA 11

ITRON INC 11

ASOKA USA CORP 9

ROCKWELL 8

SCHNEIDER 8

FORD 8

AT & T CORP 8

SCHWEITZER ENGINEERING LAB INC 7

HONEYWELL 7

COOPER TECHNOLOGIES CO 7 Acquired by Eaton


http://is.gd/4TMmCT

http://is.gd/lIhNoM

http://is.gd/O1DXyk

http://is.gd/ckwco8

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Smart Grid Patent Analysis

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