Growing community of inventors

Olney, IL, United States of America

David K Camfield

Average Co-Inventor Count = 1.78

ph-index = 11

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 = 259

David K CamfieldDaniel F Brashear (6 patents)David K CamfieldDaniel G Hahn (5 patents)David K CamfieldDuane J Niemeyer (4 patents)David K CamfieldJeffrey D Metcalf (2 patents)David K CamfieldMarion N Craig (1 patent)David K CamfieldCraig A Topp (1 patent)David K CamfieldRobert N Conn (1 patent)David K CamfieldRicke D Shamhart (1 patent)David K CamfieldDavid K Camfield (18 patents)Daniel F BrashearDaniel F Brashear (9 patents)Daniel G HahnDaniel G Hahn (15 patents)Duane J NiemeyerDuane J Niemeyer (11 patents)Jeffrey D MetcalfJeffrey D Metcalf (24 patents)Marion N CraigMarion N Craig (2 patents)Craig A ToppCraig A Topp (2 patents)Robert N ConnRobert N Conn (1 patent)Ricke D ShamhartRicke D Shamhart (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Roadmaster, Inc. (16 from 56 patents)

2. Brunswick Corporation (1 from 2,537 patents)


18 patents:

1. 5782540 - Plastic wheel and method of making same

2. D376997 - Chopper bicycle

3. D376337 - Bicycle

4. D376123 - Set of bicycle frame attachments

5. D375767 - Ski exercise machine

6. D373980 - Bicycle

7. 5505493 - Bicycle with simulated motorcycle parts

8. D368242 - Bicycle

9. D367021 - Simulated motorcycle engine for a bicycle

10. D364662 - Combined base and arm mechanism for a ski exercise machine

11. D353638 - Exercise bicycle

12. 5314207 - Bicycle with simulated motorcycle parts

13. D346138 - Bicycle

14. D345725 - Bicycle fairing

15. D345325 - Bicycle shroud

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idiyas.com
as of
12/18/2025
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