Smelter Control Research Association, Inc.

Calculating rank

USPTO Granted Patents = 1

Forward Citations = 8

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4 inventors (with patents filed for the assignee):

Walter F Johnson (1 out of 8 patents)

James M Henderson (1 out of 5 patents)

William H Wetherill (1 out of 5 patents)

4. Ivor E Campbell (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 4231995 - Ammonia double-alkali process for removing sulfur oxides from stack gases (1980-11-04),

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USPTO Data Jan 1 1976 - Oct 27 2026

1 Patents

#3,290 in New York, NY

#8,667 in New York

#136,971 in US

New York, NY, United States of America

Smelter Control Research Association, Inc.

Forward Citations = 8

4 inventors:

Walter F Johnson (1 out of 8 patents)

James M Henderson (1 out of 5 patents)

William H Wetherill (1 out of 5 patents)

4. Ivor E Campbell (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Smelter Control Research Association, Inc.. Retrieved from https://idiyas.com/company/smelter-control-research-association

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]