Growing community of inventors

Edina, MN, United States of America

Robert H Hamilton

Average Co-Inventor Count = 2.49

ph-index = 7

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 = 846

Robert H HamiltonThomas J Doyle (5 patents)Robert H HamiltonPhillip R Brooks (4 patents)Robert H HamiltonWilliam J Veeneman (3 patents)Robert H HamiltonKarla J Alexander (3 patents)Robert H HamiltonEric J Armstrong (1 patent)Robert H HamiltonMichael A Bilodeau (1 patent)Robert H HamiltonRobert H Hamilton (7 patents)Thomas J DoyleThomas J Doyle (5 patents)Phillip R BrooksPhillip R Brooks (6 patents)William J VeenemanWilliam J Veeneman (12 patents)Karla J AlexanderKarla J Alexander (3 patents)Eric J ArmstrongEric J Armstrong (1 patent)Michael A BilodeauMichael A Bilodeau (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Gift Certificate Center, Inc. (3 from 9 patents)

2. Tpi Corporation (2 from 9 patents)

3. Core Group Marketing, Inc. (1 from 1 patent)


7 patents:

1. 5667082 - Ball caddy system

2. 5652421 - Method and apparatus for generating gift certificates

3. 5572005 - Telecommunications booth comprising a telecommunications train having a

4. 5500514 - Method and apparatus for generating gift certificates

5. 5393964 - Telecommunications booth and method of use

6. D347526 - Transfer bench

7. 5243174 - Method and apparatus for generating gift certificates

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as of
1/16/2026
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