Growing community of inventors

Westlake Village, CA, United States of America

Donald Ratner

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 = 108

Donald RatnerPaul Feinsinger (3 patents)Donald RatnerFrank Hsieh (2 patents)Donald RatnerDonald Ratner (3 patents)Paul FeinsingerPaul Feinsinger (3 patents)Frank HsiehFrank Hsieh (32 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Kransco (3 from 34 patents)


3 patents:

1. 5503699 - Applying patches from mold cavity surface on ball and impressing patterns

2. 5427372 - Applying patches and impressing patterns on ball

3. 5354053 - Play ball

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as of
12/18/2025
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