Growing community of inventors

West Olive, MI, United States of America

Philip D Stegenga

Average Co-Inventor Count = 2.38

ph-index = 7

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 = 634

Philip D StegengaWayne Vandenbrink (5 patents)Philip D StegengaRichard D Hutchinson, Jr (3 patents)Philip D StegengaJohn F Thomas (2 patents)Philip D StegengaWilliam L Katsma (2 patents)Philip D StegengaDenis Wood (2 patents)Philip D StegengaBarry Dipper (2 patents)Philip D StegengaRobert L Norton (2 patents)Philip D StegengaJohn H Veltkamp (2 patents)Philip D StegengaWayne Vanden Brink (1 patent)Philip D StegengaPhilip D Stegenga (9 patents)Wayne VandenbrinkWayne Vandenbrink (11 patents)Richard D Hutchinson, JrRichard D Hutchinson, Jr (4 patents)John F ThomasJohn F Thomas (8 patents)William L KatsmaWilliam L Katsma (4 patents)Denis WoodDenis Wood (3 patents)Barry DipperBarry Dipper (3 patents)Robert L NortonRobert L Norton (2 patents)John H VeltkampJohn H Veltkamp (2 patents)Wayne Vanden BrinkWayne Vanden Brink (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Donnelly Mirrors Limited (8 from 37 patents)

2. Donnelly Corporation (1 from 912 patents)


9 patents:

1. 4524941 - Rearview mirror support bracket

2. 4435042 - Vehicle mirror and support assembly

3. 4315614 - Constant torque pivot assembly

4. 4166651 - Vehicular mirror assembly and pivot support assembly therefor

5. D252022 - Vehicular mirror support

6. D251662 - Combined vehicle rearview mirror and mounting bracket

7. 4135694 - Pivot support bracket

8. D250702 - Rearview mirror support bracket

9. D249258 - Mirror support housing

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as of
1/3/2026
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