Growing community of inventors

Phoenix, AZ, United States of America

William J Down

Average Co-Inventor Count = 1.27

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 = 838

William J DownRobert D Hayward (3 patents)William J DownWilliam J Down (7 patents)Robert D HaywardRobert D Hayward (11 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Gilbert Engineering Company, Inc. (5 from 16 patents)

2. Other (1 from 832,880 patents)

3. Gilbert Engineering, LLC (1 from 2 patents)


7 patents:

1. 5525076 - Longitudinally compressible coaxial cable connector

2. 5466173 - Longitudinally compressible coaxial cable connector

3. D355641 - Cable connector

4. 5273444 - Tamper-resistant cable terminator system

5. 5179877 - Tamper-resistant cable terminator system

6. 5141451 - Securement means for coaxial cable connector

7. 5055060 - Tamper-resistant cable terminator system

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as of
1/2/2026
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