Growing community of inventors

Glendora, CA, United States of America

William J Wichman

Average Co-Inventor Count = 1.28

ph-index = 14

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 = 513

William J WichmanFrederick G Mackay (1 patent)William J WichmanRoy K Fujitaki (1 patent)William J WichmanDavid Eugene Robertson (1 patent)William J WichmanRudolph M Gunzel, Jr (1 patent)William J WichmanEdward M Troup, Deceased (1 patent)William J WichmanJohn D Beamer (1 patent)William J WichmanMax A Graham (1 patent)William J WichmanRichard A Vander Ploeg (1 patent)William J WichmanRobert W Patterson (1 patent)William J WichmanWilliam J Wichman (19 patents)Frederick G MackayFrederick G Mackay (16 patents)Roy K FujitakiRoy K Fujitaki (15 patents)David Eugene RobertsonDavid Eugene Robertson (13 patents)Rudolph M Gunzel, JrRudolph M Gunzel, Jr (7 patents)Edward M Troup, DeceasedEdward M Troup, Deceased (3 patents)John D BeamerJohn D Beamer (2 patents)Max A GrahamMax A Graham (1 patent)Richard A Vander PloegRichard A Vander Ploeg (1 patent)Robert W PattersonRobert W Patterson (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Discovery Toys, Inc. (9 from 44 patents)

2. Other (5 from 833,002 patents)

3. Rain Bird Sprinkler Mfg. Corp. (2 from 40 patents)

4. Chevron Research Company (1 from 1,860 patents)

5. Anthony Manufacturing Corp. (1 from 22 patents)

6. Rain Bird Sprinkler Manufacturing Corporation (1 from 2 patents)


19 patents:

1. 5351843 - Folding display frame for forming column-like structures

2. 5125205 - Display frame with folding display attachment devices

3. 4986016 - Folding display frame with offset hub configuration

4. 4976530 - Sunglasses with visor

5. 4809471 - Diagonal assembly for folding display frames

6. D294959 - Collecting base for a marble game ramp

7. D294044 - Marble game ramp

8. D293696 - Marble game ramp

9. 4713038 - Marble race game

10. D290145 - Marble game ramp

11. D290143 - Marble game ramp

12. D290028 - Marble game ramp

13. D290026 - Marble game ramp

14. 4527740 - Hose-end aspirator sprayer

15. D278920 - Toy chain link

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as of
1/22/2026
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