Growing community of inventors

Houston, TX, United States of America

Edward Ryan Hemphill

Average Co-Inventor Count = 2.36

ph-index = 6

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 = 123

Edward Ryan HemphillMichael Wayne Berckenhoff (10 patents)Edward Ryan HemphillWilliam Lyle Carbaugh (6 patents)Edward Ryan HemphillWilliam Rinehart Holland, Jr (1 patent)Edward Ryan HemphillWilliam R Holland (1 patent)Edward Ryan HemphillEdward Ryan Hemphill (11 patents)Michael Wayne BerckenhoffMichael Wayne Berckenhoff (12 patents)William Lyle CarbaughWilliam Lyle Carbaugh (23 patents)William Rinehart Holland, JrWilliam Rinehart Holland, Jr (6 patents)William R HollandWilliam R Holland (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Hydril Company (7 from 277 patents)

2. Hydril USA Manufacturing LLC (4 from 67 patents)


11 patents:

1. 8230930 - Mounts for blowout preventer bonnets and methods of use

2. 7802626 - Mounts for blowout preventer bonnets and methods of use

3. 7699554 - Removable seal carrier for blowout preventer bonnet assembly

4. 7413019 - Mounts for blowout preventer bonnets

5. 7281586 - Mounts for blowout preventer bonnets

6. 7246666 - Mounts for blowout preventer bonnets

7. 7121348 - Mounts for blowout preventer bonnets

8. 7096960 - Mounts for blowout preventer bonnets

9. 6845959 - Quick release blowout preventer bonnet

10. 6554247 - Quick release blowout preventer bonnet

11. 6510897 - Rotational mounts for blowout preventer bonnets

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idiyas.com
as of
12/13/2025
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