Forward Citations = 8

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5 inventors (with patents filed for the assignee):

John Robertson Rzasa (1 out of 4 patents)

Christopher C Davis (1 out of 17 patents)

Leroy B Chamberlain, Jr (1 out of 1 patent)

4. Jakob R Scharmer (1 out of 1 patent)

5. Gerald W Spessard (1 out of 3 patents)

1 patent: Sort by Forward Citations

1. 9352208 - Electronic home plate for baseball and softball games and method for automatic determination of presence, position and speed of a ball relative to the strike zone (2016-05-31),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

1 Patents

#3 in Mercersburg, PA

#4,966 in Pennsylvania

#136,844 in US

Mercersburg, PA, United States of America

Spessard Manufacturing, LLC

Forward Citations = 8

5 inventors:

John Robertson Rzasa (1 out of 4 patents)

Christopher C Davis (1 out of 17 patents)

Leroy B Chamberlain, Jr (1 out of 1 patent)

4. Jakob R Scharmer (1 out of 1 patent)

5. Gerald W Spessard (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Spessard Manufacturing, LLC. Retrieved from https://idiyas.com/company/spessard-manufacturing

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]