Growing community of inventors

Plymouth, MN, United States of America

Dennis D Simpson

Average Co-Inventor Count = 2.21

ph-index = 13

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 = 434

Dennis D SimpsonBenjamin P Williams (16 patents)Dennis D SimpsonJoseph P Foley (15 patents)Dennis D SimpsonBenjamin M Wernberg (8 patents)Dennis D SimpsonJeff D Skubic (7 patents)Dennis D SimpsonYongxue Lu (4 patents)Dennis D SimpsonLouis F Polk, Iii (2 patents)Dennis D SimpsonJason J Ness (2 patents)Dennis D SimpsonFrank Pieschel (2 patents)Dennis D SimpsonRyan McMunn (2 patents)Dennis D SimpsonBen Williams (2 patents)Dennis D SimpsonRobert J Jantschek (1 patent)Dennis D SimpsonJames Owen Childers (1 patent)Dennis D SimpsonCraig L Stewart (1 patent)Dennis D SimpsonMatthew Hobdy (1 patent)Dennis D SimpsonBuck Dolan (1 patent)Dennis D SimpsonYongxue Lu (1 patent)Dennis D SimpsonBen Williams (1 patent)Dennis D SimpsonDennis D Simpson (34 patents)Benjamin P WilliamsBenjamin P Williams (36 patents)Joseph P FoleyJoseph P Foley (50 patents)Benjamin M WernbergBenjamin M Wernberg (23 patents)Jeff D SkubicJeff D Skubic (9 patents)Yongxue LuYongxue Lu (4 patents)Louis F Polk, IiiLouis F Polk, Iii (32 patents)Jason J NessJason J Ness (19 patents)Frank PieschelFrank Pieschel (6 patents)Ryan McMunnRyan McMunn (2 patents)Ben WilliamsBen Williams (2 patents)Robert J JantschekRobert J Jantschek (7 patents)James Owen ChildersJames Owen Childers (3 patents)Craig L StewartCraig L Stewart (2 patents)Matthew HobdyMatthew Hobdy (1 patent)Buck DolanBuck Dolan (1 patent)Yongxue LuYongxue Lu (4 patents)Ben WilliamsBen Williams (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tricam Industries, Inc. (28 from 57 patents)

2. Tricam International, Inc. (3 from 5 patents)

3. Other (2 from 832,843 patents)


34 patents:

1. 12084917 - Stepladder tray

2. 11629514 - Work platform

3. 11505994 - Top cap for multi-position ladder

4. 11391089 - Stepladder folding leg

5. 11299187 - Dump cart

6. 11220862 - Step ladder

7. D897680 - Cart tub

8. D897679 - Cart tub

9. 10648234 - Step ladder

10. D876744 - Dumping cart

11. D860476 - Hinge for a multi-position ladder

12. D855833 - Ladder rail

13. D840055 - Step ladder

14. 10138680 - Hinged tray for ladder or step stool

15. D826507 - Log cart

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as of
12/29/2025
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