Growing community of inventors

Waltham, MA, United States of America

Christopher John O'Brien

Average Co-Inventor Count = 2.07

ph-index = 3

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 = 33

Christopher John O'BrienDarryl Edward Pollica (9 patents)Christopher John O'BrienBryan Gordon (6 patents)Christopher John O'BrienPrabhu K Rao (2 patents)Christopher John O'BrienChristopher John O'Brien (11 patents)Darryl Edward PollicaDarryl Edward Pollica (12 patents)Bryan GordonBryan Gordon (9 patents)Prabhu K RaoPrabhu K Rao (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ivys Inc. (9 from 10 patents)

2. Other (2 from 832,891 patents)


11 patents:

1. 12504125 - Hydrogen fueling systems and methods

2. 12021280 - Hydrogen gas dispensing systems and methods

3. 11971143 - Hydrogen fueling systems and methods

4. 11913607 - Hydrogen fueling systems and methods

5. 11892126 - Hydrogen fueling systems and methods

6. 11802665 - Hydrogen fueling systems and methods

7. 11692670 - Hydrogen fueling systems and methods

8. 11196062 - Hydrogen gas dispensing systems and methods

9. 10236522 - Hydrogen gas dispensing systems and methods

10. 10145125 - Cove base molding systems and methods

11. 5884629 - Male urethral occlusive device

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as of
12/31/2025
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