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Janesville, WI, United States of America

Thomas W Hillebrand

Average Co-Inventor Count = 1.45

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 = 119

Thomas W HillebrandHerbert V Kohler, Jr (1 patent)Thomas W HillebrandThomas E Gaffney (1 patent)Thomas W HillebrandBrian A Booker (1 patent)Thomas W HillebrandRonald N Grimstad (1 patent)Thomas W HillebrandClemens A Sonntag (1 patent)Thomas W HillebrandThomas W Hillebrand (8 patents)Herbert V Kohler, JrHerbert V Kohler, Jr (239 patents)Thomas E GaffneyThomas E Gaffney (18 patents)Brian A BookerBrian A Booker (8 patents)Ronald N GrimstadRonald N Grimstad (5 patents)Clemens A SonntagClemens A Sonntag (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kohler Company (6 from 3,412 patents)

2. The Parker Pen Company (2 from 29 patents)


8 patents:

1. D312866 - Spout

2. D310763 - Non-slip surface unit for bathtubs or the like

3. D309999 - Non-slip surface unit for bathtubs or the like

4. D303423 - Combined drain handle and cover for a bathtub or the like

5. D302849 - Plumbing fitting handle

6. 4729134 - Toilet covering hinge assembly

7. D280422 - Fountain pen

8. D279383 - Ball point writing instrument

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as of
12/16/2025
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