Growing community of inventors

Apex, NC, United States of America

Darren Paul Umstead

Average Co-Inventor Count = 4.00

ph-index = 3

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 = 57

Darren Paul UmsteadJoseph Kinman Lee (3 patents)Darren Paul UmsteadPrasanna Srinivasan (3 patents)Darren Paul UmsteadDaniel Ray Spach (3 patents)Darren Paul UmsteadDarren Paul Umstead (3 patents)Joseph Kinman LeeJoseph Kinman Lee (27 patents)Prasanna SrinivasanPrasanna Srinivasan (10 patents)Daniel Ray SpachDaniel Ray Spach (10 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. International Business Machines Corporation (3 from 164,219 patents)


3 patents:

1. 7733228 - Wireless system to detect presence of child in a baby car seat

2. 7489247 - Wireless system provided in a vehicle to detect presence of child in a baby car seat

3. 7321306 - Wireless system to detect presence of child in a baby car seat

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