Growing community of inventors

Seattle, WA, United States of America

Matthew Royce Ullman

Average Co-Inventor Count = 2.57

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 = 74

Matthew Royce UllmanBrian T Worsham (3 patents)Matthew Royce UllmanDouglas George Orman Leonard (2 patents)Matthew Royce UllmanMatthew Royce Ullman (3 patents)Brian T WorshamBrian T Worsham (5 patents)Douglas George Orman LeonardDouglas George Orman Leonard (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Adp Dealer Services, Inc. (2 from 6 patents)

2. The Cobalt Group, Inc. (1 from 14 patents)


3 patents:

1. 8538894 - Source- and venue-specific inventory data processing and identification system

2. 8275717 - Source- and venue-specific inventory data processing and identification system

3. 8055544 - Source- and venue-specific inventory data processing and identification system

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as of
12/27/2025
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