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Long Beach, CA, United States of America

Robert William Matthes

Average Co-Inventor Count = 3.27

ph-index = 2

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 = 11

Robert William MatthesStacy Lynn O'Connor (2 patents)Robert William MatthesSang Joon Kwak (2 patents)Robert William MatthesJulian Richard Payne (1 patent)Robert William MatthesKam Wah Wei (1 patent)Robert William MatthesTsz Ho Au (1 patent)Robert William MatthesRobert William Matthes (3 patents)Stacy Lynn O'ConnorStacy Lynn O'Connor (39 patents)Sang Joon KwakSang Joon Kwak (5 patents)Julian Richard PayneJulian Richard Payne (23 patents)Kam Wah WeiKam Wah Wei (1 patent)Tsz Ho AuTsz Ho Au (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mattel, Inc. (3 from 1,702 patents)


3 patents:

1. 9808729 - Wall mounted toy track set

2. 9345979 - Wall mounted toy track set

3. 8734200 - Toy playset with a launcher and a material dispenser

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as of
12/16/2025
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