Growing community of inventors

San Leandro, CA, United States of America

Tom E Robbins

Average Co-Inventor Count = 1.03

ph-index = 13

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 = 740

Tom E RobbinsNorman Bell (1 patent)Tom E RobbinsTom E Robbins (18 patents)Norman BellNorman Bell (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Kallista, Inc. (17 from 49 patents)


18 patents:

1. D384134 - Plumbing spout

2. D375149 - Plumbing spout

3. D371826 - Handle for plumbing fitting

4. D365384 - Handle for plumbing fitting

5. D349329 - Handle for plumbing fittings

6. D338057 - Shower fixture

7. 5215260 - Plumbing spout

8. D332824 - Handle for plumbing fixtures and accessories

9. D331620 - Handle for a faucet

10. D328944 - Shower head

11. D326504 - Spout

12. D321039 - Spout

13. D317816 - Faucet handle

14. 5026013 - Support post mounting assembly

15. D317196 - Faucet handle

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as of
12/18/2025
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