Growing community of inventors

Maple Grove, MN, United States of America

David R Henke

Average Co-Inventor Count = 1.58

ph-index = 16

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 = 705

David R HenkeThomas M Grimm (6 patents)David R HenkeSteven L Thompson (5 patents)David R HenkeDavid J Ruha (4 patents)David R HenkeJames B Easley (2 patents)David R HenkeDouglas B Malchow (2 patents)David R HenkeScott D'Edwine Lawrence (1 patent)David R HenkeAdam Jesse Lilly (1 patent)David R HenkeShawn W Davis (1 patent)David R HenkeSteve Thompson (1 patent)David R HenkeGerald Ranallo (1 patent)David R HenkeDavid R Henke (31 patents)Thomas M GrimmThomas M Grimm (7 patents)Steven L ThompsonSteven L Thompson (14 patents)David J RuhaDavid J Ruha (8 patents)James B EasleyJames B Easley (36 patents)Douglas B MalchowDouglas B Malchow (3 patents)Scott D'Edwine LawrenceScott D'Edwine Lawrence (6 patents)Adam Jesse LillyAdam Jesse Lilly (1 patent)Shawn W DavisShawn W Davis (1 patent)Steve ThompsonSteve Thompson (1 patent)Gerald RanalloGerald Ranallo (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Warner Manufacturing Company (29 from 37 patents)

2. Other (1 from 832,680 patents)

3. Warner Manufacturing Corporationa (1 from 1 patent)


31 patents:

1. D809235 - Glass scraper

2. 9610679 - Tool handle and method for making same

3. 9290953 - Compound container

4. 8844410 - Tool handle and method for making same

5. D702408 - Adjustable blade pole scraper

6. 7416477 - Sander tool with pivoting handle and attachable pol

7. D564325 - Sander tool

8. D563191 - Hand tool handle

9. D562517 - Multi-feature scraper tool

10. D556534 - Sander tool with pivoting handle

11. D555856 - Scraper tool with pivoting handle

12. D527532 - Paint pad applicator handle

13. D527190 - Two wheel edger handle

14. 6865761 - Apparatus and method for opening a container and mixing and cleaning a container

15. 6668751 - System and method for identifying hand tools

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as of
12/6/2025
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