Growing community of inventors

Fullerton, CA, United States of America

Mark D Doublin

Average Co-Inventor Count = 1.06

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 = 92

Mark D Doublin ↔ Ian P McAllister (2 patents)Mark D Doublin ↔ Ronald A Ramirez (2 patents)Mark D Doublin ↔ Ian P Mcallister (0 patent)Mark D DoublinMark D Doublin (25 patents)Ian P McAllisterIan P McAllister (2 patents)Ronald A RamirezRonald A Ramirez (2 patents)Ian P McallisterIan P Mcallister (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Bell Sports, Inc. (25 from 239 patents)


25 patents:

1. D1100359 - Helmet

2. D1100360 - Helmet

3. D1086580 - Helmet

4. D1063221 - Helmet

5. D1013966 - Helmet

6. D1013967 - Helmet

7. D1013964 - Helmet

8. D1013965 - Helmet

9. D1004851 - Unicorn helmet

10. D1003519 - Unicorn LED helmet

11. D1003521 - Unicorn helmet

12. D1003520 - Unicorn helmet

13. D969413 - Unicorn LED helmet

14. D969410 - Unicorn helmet

15. D966618 - Helmet

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as of
1/10/2026
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