Growing community of inventors

Waterloo, IA, United States of America

Fred Philip Ritchie

Average Co-Inventor Count = 2.57

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 = 273

Fred Philip RitchieDavid Allen Trower (7 patents)Fred Philip RitchieBryan J Stow (3 patents)Fred Philip RitchieSteven Frederick Kohagen (2 patents)Fred Philip RitchieDeonna Jene Fritz (2 patents)Fred Philip RitchieGregory Jon Holcomb (1 patent)Fred Philip RitchieFred Philip Ritchie (9 patents)David Allen TrowerDavid Allen Trower (8 patents)Bryan J StowBryan J Stow (3 patents)Steven Frederick KohagenSteven Frederick Kohagen (23 patents)Deonna Jene FritzDeonna Jene Fritz (2 patents)Gregory Jon HolcombGregory Jon Holcomb (12 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Waterloo Industries, Inc. (9 from 110 patents)


9 patents:

1. 5988382 - Screwdriver holder

2. 5988658 - Tool box carrier

3. D411351 - Step tool box

4. 5882097 - Step tool box

5. D403860 - Portable container for sockets

6. 5799789 - Portable container for sockets

7. 5575401 - Portable storage assembly

8. 5518139 - Portable storage assembly

9. D355849 - Portable storage container

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as of
1/11/2026
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