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Poway, CA, United States of America

David K Hartsfield

Average Co-Inventor Count = 3.90

ph-index = 4

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 139

David K HartsfieldWilliam Paul Alberth, Jr (5 patents)David K HartsfieldScott A Steele (5 patents)David K HartsfieldSeang Yong Chau (4 patents)David K HartsfieldWilliam Rice (1 patent)David K HartsfieldDavid K Hartsfield (5 patents)William Paul Alberth, JrWilliam Paul Alberth, Jr (141 patents)Scott A SteeleScott A Steele (11 patents)Seang Yong ChauSeang Yong Chau (20 patents)William RiceWilliam Rice (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Green Edge Technologies, Inc. (5 from 7 patents)


5 patents:

1. 9366702 - Devices and methods for determining whether an electrical device or component can sustain variations in voltage

2. 9337663 - Systems, devices, and methods for automation and energy management

3. 9110450 - Systems, devices, and methods for dynamically assigning functions to an actuator

4. 9100207 - Systems, devices, and methods for mapping devices to realize building automation and energy management

5. 8639391 - Systems, devices, and methods for automation and energy management

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as of
12/4/2025
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