Growing community of inventors

Howards Grove, WI, United States of America

David Eugene Hansen

Average Co-Inventor Count = 2.13

ph-index = 6

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 = 114

David Eugene HansenPerry D Erickson (6 patents)David Eugene HansenJohn C Esche (4 patents)David Eugene HansenBrad Raymond Hadfield (4 patents)David Eugene HansenRafael A Rexach (2 patents)David Eugene HansenLeila M Rubin (1 patent)David Eugene HansenMichael J Merritt (1 patent)David Eugene HansenAnton J Kolar (1 patent)David Eugene HansenJeffrey C Hildebrand (1 patent)David Eugene HansenPatrick H Montag (1 patent)David Eugene HansenDavid S Wilson (1 patent)David Eugene HansenJohn Check (1 patent)David Eugene HansenDavid Eugene Hansen (15 patents)Perry D EricksonPerry D Erickson (47 patents)John C EscheJohn C Esche (39 patents)Brad Raymond HadfieldBrad Raymond Hadfield (9 patents)Rafael A RexachRafael A Rexach (133 patents)Leila M RubinLeila M Rubin (43 patents)Michael J MerrittMichael J Merritt (20 patents)Anton J KolarAnton J Kolar (10 patents)Jeffrey C HildebrandJeffrey C Hildebrand (8 patents)Patrick H MontagPatrick H Montag (5 patents)David S WilsonDavid S Wilson (1 patent)John CheckJohn Check (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kohler Company (15 from 3,408 patents)


15 patents:

1. 12305372 - Faucet assembly with friction ring

2. 11879238 - Faucet assembly with friction ring

3. 11555300 - Faucet assembly with friction ring

4. 11098465 - Faucet assembly with friction ring

5. 10815650 - Faucet with offset valve

6. 10604918 - Faucet with offset valve

7. 10273669 - System and method to position and retain a sensor in a faucet spout

8. 9879407 - Faucet handle fitting

9. 9695580 - System and method to position and retain a sensor in a faucet spout

10. 9259744 - Faucet

11. 9062790 - System and method to position and retain a sensor in a faucet spout

12. 8505579 - Selectable fluid valve assembly

13. 7909269 - Faucet spray control assembly

14. 7814927 - Faucet with accessible waterway assembly

15. 5940895 - Heated toilet seat

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as of
12/8/2025
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