Growing community of inventors

Kalamazoo, MI, United States of America

Douglas Campbell

Average Co-Inventor Count = 3.66

ph-index = 5

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 = 314

Douglas CampbellBruce D Henniges (56 patents)Douglas CampbellRichard Franklin Huyser (46 patents)Douglas CampbellBrian James VanDerWoude (5 patents)Douglas CampbellMarshall Proulx (4 patents)Douglas CampbellDavid H Grulke (2 patents)Douglas CampbellDouglas L Tyler (14 patents)Douglas CampbellAdam C Sclafani (2 patents)Douglas CampbellJacob C Foor (2 patents)Douglas CampbellTimothy Austin (1 patent)Douglas CampbellBrian VanderWoude (2 patents)Douglas CampbellBrian J Vanderwoude (1 patent)Douglas CampbellDenis A Stratton (0 patent)Douglas CampbellDenis A Stratton (0 patent)Douglas CampbellDouglas Campbell (5 patents)Bruce D HennigesBruce D Henniges (56 patents)Richard Franklin HuyserRichard Franklin Huyser (46 patents)Brian James VanDerWoudeBrian James VanDerWoude (39 patents)Marshall ProulxMarshall Proulx (17 patents)David H GrulkeDavid H Grulke (22 patents)Douglas L TylerDouglas L Tyler (14 patents)Adam C SclafaniAdam C Sclafani (13 patents)Jacob C FoorJacob C Foor (3 patents)Timothy AustinTimothy Austin (2 patents)Brian VanderWoudeBrian VanderWoude (2 patents)Brian J VanderwoudeBrian J Vanderwoude (1 patent)Denis A StrattonDenis A Stratton (0 patent)Denis A StrattonDenis A Stratton (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Stryker Corporation (5 from 2,278 patents)


5 patents:

1. 9706808 - Medical/surgical personal protection system including a helmet, a hood and a speaker that broadcasts speech outside of the hood

2. 9173437 - Medical/surgical personal protection system including a helmet and a hood, the helmet having chin bar-mounted controls

3. 8282234 - Medical/surgical personal protection system including a light assembly arranged so that heat generated by the assembly is exhausted away from the assembly

4. 8234722 - Personal protection system with head unit having easy access controls and protective covering having glare avoiding face shield

5. 7735156 - Head unit for a medical/surgical personal protection system with a head band and a ventilation unit that is adjustably position relative to the head band

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as of
12/6/2025
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