Growing community of inventors

North Oaks, MN, United States of America

Jeffery Cy 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 = 33

Jeffery Cy ChangJohn J Stofko, Jr (2 patents)Jeffery Cy ChangJeffery Cy Chang (2 patents)John J Stofko, JrJohn J Stofko, Jr (30 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Minnesota Mining and Manufacturing Company (2 from 7,865 patents)


2 patents:

1. 5565518 - Water soluble organosiloxane compounds

2. 5464900 - Water soluble organosiloxane compounds

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1/5/2026
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