Growing community of inventors

Plano, TX, United States of America

Dennis J Hayman

Average Co-Inventor Count = 1.08

ph-index = 6

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 = 185

Dennis J HaymanDavid M Pearce (1 patent)Dennis J HaymanDennis J Hayman (7 patents)David M PearceDavid M Pearce (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. United States Brass Corporation (6 from 13 patents)

2. Eljer Manufacturing, Inc. (1 from 6 patents)


7 patents:

1. 5579542 - Toilet with water saving, vacuum-assisted flushing apparatus and

2. 4807306 - Pop-up drain assembly for lavatory basins

3. 4765590 - Faucet valve with diagonal sealing ring

4. 4681140 - Tub-shower diverter apparatus

5. 4606372 - Faucet valve bonnet locking means

6. 4502507 - Single handle faucet valve

7. 4397330 - Mixing valve for back to back installation

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as of
1/6/2026
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