Forward Citations = 10

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3 inventors (with patents filed for the assignee):

S A Ravishankar (1 out of 1 patent)

Ernest M Finch (1 out of 3 patents)

Richard R Berube (1 out of 9 patents)

1 patent: Sort by Forward Citations

1. 6440209 - Composite pigments comprising in-situ precipitated metal carbonate crystals (2002-08-27),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

1 Patents

#23 in Iselin, NJ

#4,853 in New Jersey

#136,844 in US

Iselin, NJ, United States of America

Engelhard Corpoartion

Forward Citations = 10

3 inventors:

S A Ravishankar (1 out of 1 patent)

Ernest M Finch (1 out of 3 patents)

Richard R Berube (1 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Engelhard Corpoartion. Retrieved from https://idiyas.com/company/engelhard-corporation

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]