Growing community of inventors

Bentonville, AR, United States of America

Simon David Langford

Average Co-Inventor Count = 2.00

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 = 21

Simon David LangfordRichard Ulrich (1 patent)Simon David LangfordRichard Bennett Ulrich (1 patent)Simon David LangfordSimon David Langford (1 patent)Richard UlrichRichard Ulrich (13 patents)Richard Bennett UlrichRichard Bennett Ulrich (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Wal-mart Stores, Inc. (1 from 405 patents)


1 patent:

1. 8002181 - RFID promotional compliance

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as of
12/6/2025
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