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Waldwick, NJ, United States of America

David A Chang

Average Co-Inventor Count = 2.00

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 = 19

David A Chang ↔ Alan N Bodker (3 patents)David A Chang ↔ James W Cavanagh (1 patent)David A ChangDavid A Chang (4 patents)Alan N BodkerAlan N Bodker (12 patents)James W CavanaghJames W Cavanagh (6 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Reckitt & Colman Inc. (4 from 112 patents)


4 patents:

1. D395071 - In-tank toilet dispenser

2. D392021 - In-tank toilet dispenser

3. D392022 - In-tank toilet dispenser

4. 5688435 - Pigmented rheopectic cleaning compositions with thixotropic properties

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12/30/2025
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