Growing community of inventors

Saint Paul, MN, United States of America

David A Gray

Average Co-Inventor Count = 1.83

ph-index = 4

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 = 120

David A GrayMark Alan Litman (6 patents)David A GrayRobert M Hume (5 patents)David A GrayDavid Lee Safranski (1 patent)David A GrayDavid A Gray (11 patents)Mark Alan LitmanMark Alan Litman (30 patents)Robert M HumeRobert M Hume (18 patents)David Lee SafranskiDavid Lee Safranski (21 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (6 from 832,966 patents)

2. Liberman Distributing and Manufacturing Co. (4 from 4 patents)

3. Liberman Disbributing and Manufacturing Co. (1 from 1 patent)


11 patents:

1. 11549199 - Active apparel and fabric and coverings

2. 11352715 - Active apparel and fabric and coverings

3. 10328625 - Coextruded arc-induced materials

4. 10182946 - Advanced fabric technology and filters

5. 9901128 - Antimicrobial apparel and fabric and coverings

6. 9447307 - Extendable self-supporting material

7. 9427945 - Extendable self-supporting material composites and manufacture thereof

8. 9376600 - Extendable self-supporting material

9. 9095422 - Method and structure for nasal dilator

10. 8695269 - Fishing rod with line indicator grip

11. 5477900 - Non-jamming pulpwood chipper chute and spout assembly

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as of
1/19/2026
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