Trademarks = 3

Forward Citations = 109

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6 inventors (with patents filed for the assignee):

Patrick J Coyne (2 out of 12 patents)

Paul E Brokaw (2 out of 16 patents)

Irving Leonard Kaplan (1 out of 1 patent)

4. Marc L Vitantonio Vitantonio (1 out of 1 patent)

5. Trevor Leslie Jackson (1 out of 51 patents)

6. James D'Onofrio (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 9764593 - Wheel assembly with rolling and swiveling capability (2017-09-19),

2. 5433505 - Adjustable seat and back cushion (1995-07-18),

3. 5136751 - Wheel assembly (1992-08-11),

4. D318211 - Tool for use in installing and removing casters (1991-07-16),

Company Overview

Master Manufacturing Co., Inc. is a leading manufacturer of innovative agricultural equipment. With over 50 years of experience, we specialize in the production of sprayers, spreaders, and other farm accessories. Our products are designed to improve efficiency and productivity for farmers worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

4 Patents

#279 in Cleveland, OH

#2,334 in Ohio

#60,641 in US

Cleveland, OH, United States of America

Master Manufacturing Co., Inc.

Forward Citations = 109

6 inventors:

Patrick J Coyne (2 out of 12 patents)

Paul E Brokaw (2 out of 16 patents)

Irving Leonard Kaplan (1 out of 1 patent)

4. Marc L Vitantonio Vitantonio (1 out of 1 patent)

5. Trevor Leslie Jackson (1 out of 51 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Master Manufacturing Co., Inc.. Retrieved from https://idiyas.com/company/master-manufacturing-company

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]