Growing community of inventors

Hampstead, NC, United States of America

David A Theisen

Average Co-Inventor Count = 1.62

ph-index = 5

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 = 119

David A TheisenRobert L Gault (3 patents)David A TheisenJeffrey R Small (1 patent)David A TheisenTerrence P McCoy (1 patent)David A TheisenDavid Yu Tai Zhang (1 patent)David A TheisenDavid A Theisen (7 patents)Robert L GaultRobert L Gault (14 patents)Jeffrey R SmallJeffrey R Small (1 patent)Terrence P McCoyTerrence P McCoy (1 patent)David Yu Tai ZhangDavid Yu Tai Zhang (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Marpac Corporation (7 from 13 patents)


7 patents:

1. D559721 - Safety light cover

2. 6497493 - Illuminated safety helmet

3. 6406164 - Safety light

4. D364404 - Sound conditioner

5. D347008 - Sound conditioner

6. D335129 - Synthesized telephone call announcer

7. D311065 - Sound conditioner for masking intruding noises

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
12/16/2025
Loading…