Company Badge
USPTO Data Jan 1 1976 - Oct 20 2026
5 Patents
#11 in Guelph
#2,851 in Canada
Hart Chemical Limited
Forward Citations = 42
7 inventors:
Hart Chemical Limited
Forward Citations = 42
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7 inventors (with patents filed for the assignee):
Frederick S Schell (3 out of 3 patents)
Brigitte H Licht (2 out of 6 patents)
Hugh J Shane (2 out of 2 patents)
4. Roger T Bentley (1 out of 1 patent)
5. Fredi Widmer (1 out of 2 patents)
6. Ratana Kanluen (1 out of 4 patents)
7. Mohammad A Kasem (1 out of 1 patent)
5 patents:
Company Overview
Hart Chemical Limited is a leading chemical manufacturing company specializing in high-quality industrial and specialty chemicals. With a strong commitment to innovation and sustainability, we provide a wide range of chemical solutions to customers in various industries, including pharmaceuticals, agriculture, and electronics. Our state-of-the-art facilities and dedicated team of experts ensure that we deliver top-notch products and services to meet the unique needs of our clients.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hart Chemical Limited. Retrieved from https://idiyas.com/company/hart-chemical
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]
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]
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]