Growing community of inventors

Greenville, SC, United States of America

David E Karr

Average Co-Inventor Count = 3.00

ph-index = 1

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 = 216

David E Karr ↔ Eric Stephen Rose (1 patent)David E Karr ↔ Ronald D Cranford (1 patent)David E KarrDavid E Karr (1 patent)Eric Stephen RoseEric Stephen Rose (30 patents)Ronald D CranfordRonald D Cranford (4 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Comfortaire Corporation (1 from 3 patents)


1 patent:

1. 6686711 - Air mattress control system and method

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12/12/2025
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