Growing community of inventors

Mechanicsburg, PA, United States of America

Karen A Richwine

Average Co-Inventor Count = 2.43

ph-index = 8

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 = 249

Karen A RichwineRoger L Butcher (8 patents)Karen A RichwineCharles F T Merritt (8 patents)Karen A RichwineMichael J Tomchak (4 patents)Karen A RichwineStephen T Haver (2 patents)Karen A RichwineMichael L Ritrovato (1 patent)Karen A RichwineKaren A Richwine (15 patents)Roger L ButcherRoger L Butcher (9 patents)Charles F T MerrittCharles F T Merritt (9 patents)Michael J TomchakMichael J Tomchak (15 patents)Stephen T HaverStephen T Haver (3 patents)Michael L RitrovatoMichael L Ritrovato (2 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Ames True Temper, Inc. (13 from 177 patents)

2. True Temper Hardware Company (2 from 28 patents)


15 patents:

1. 6889405 - Dual material tool handle

2. D498130 - Tool handle

3. D496837 - Pruner

4. D496838 - Pruner

5. D496839 - Shears

6. D491775 - Garden cutting tool

7. D482580 - Shears

8. D478792 - Shears

9. D476199 - Apertured blade for a hand pruner

10. D472433 - Bypass type hand pruner

11. D464541 - Anvil type hand pruner

12. D464539 - Bypass type hand pruner

13. D464540 - Lopper

14. D388669 - Elongated tool handle

15. D388293 - Tool handle with hand grip

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idiyas.com
as of
12/14/2025
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