Company Badge
USPTO Data Jan 1 1976 - Oct 6 2026
4 Patents
#112 in Santa Ana, CA
#14,041 in California
#60,597 in US
Professional Coin Grading Service, Inc.
Forward Citations = 106
3 inventors:
Santa Ana, CA, United States of America
Professional Coin Grading Service, Inc.
Forward Citations = 106
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3 inventors (with patents filed for the assignee):
David E Hall (2 out of 63 patents)
Stephen H Mayer (2 out of 2 patents)
Louis M Crain (2 out of 2 patents)
4 patents:
Company Overview
Professional Coin Grading Service (PCGS) is a leading third-party coin authentication and grading company. They offer expert, unbiased opinions on coins' authenticity and condition, providing collectors and investors with confidence and security in their numismatic pursuits. With a team of experienced and knowledgeable experts, PCGS has become a trusted and respected name in the coin industry, setting the standard for coin grading and certification.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Professional Coin Grading Service, Inc.. Retrieved from https://idiyas.com/company/professional-coin-grading-service
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]