Growing community of inventors

San Francisco, CA, United States of America

Stefan Li

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 = 9

Stefan LiValerie Lynn Goulart (4 patents)Stefan LiStefan Li (4 patents)Valerie Lynn GoulartValerie Lynn Goulart (61 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Walmart Apollo, LLC (2 from 2,174 patents)

2. Wal-Mart Stores, Inc. (2 from 405 patents)


4 patents:

1. 10318999 - Methods and systems to facilitate messaging to customers

2. 10235706 - Methods and systems for providing reminders for products in proximity

3. 9928541 - Consumer guidance while shopping for products

4. 9824384 - Techniques for locating an item to purchase in a retail environment

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as of
1/12/2026
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