Growing community of inventors

Devon, PA, United States of America

Derek T Harrar

Average Co-Inventor Count = 2.47

ph-index = 1

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 = 1

Derek T HarrarJack M Birnbaum (4 patents)Derek T HarrarRobert Gaydos (2 patents)Derek T HarrarRoger J Godin (2 patents)Derek T HarrarRobin L Opie (2 patents)Derek T HarrarRichard Neill (1 patent)Derek T HarrarValerii Grishin (1 patent)Derek T HarrarDerek T Harrar (7 patents)Jack M BirnbaumJack M Birnbaum (11 patents)Robert GaydosRobert Gaydos (30 patents)Roger J GodinRoger J Godin (2 patents)Robin L OpieRobin L Opie (2 patents)Richard NeillRichard Neill (12 patents)Valerii GrishinValerii Grishin (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Comcast Cable Communications, LLC (5 from 3,035 patents)

2. Comcast Cable Holdings, LLC (1 from 104 patents)

3. Zodiac Systems, LLC (1 from 5 patents)


7 patents:

1. 12137298 - Selection of electronic content and services

2. 11641442 - Selection of electronic content and services

3. 11392959 - Method and system for equipment testing

4. 11284036 - Selection of electronic content and services

5. 10778930 - Selection of electronic content and services

6. 10349132 - Limiting recording demands

7. 8839319 - Limiting recording demands

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as of
1/3/2026
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