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For the Inventor, By the Inventor

Dayton, OH, United States of America

Production Control Units, Inc.

Calculating rank
USPTO Granted Patents = 12

% Expired Patents = 25.0


Trademarks = 3

Forward Citations = 171

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11 inventors (with patents filed for the assignee):

goldMedal Randy S Robinson (6 out of 7 patents)

silverMedal Matthew A Smith (3 out of 3 patents)

bronzeMedal James M Jones (3 out of 30 patents)

4.  Randy S Stemen (2 out of 2 patents)

5.  Kim A Weaver (2 out of 2 patents)

6.  Chad E McKee (1 out of 1 patent)

7.  Glenn C Danner (1 out of 1 patent)

8.  Clinton R Yates (1 out of 1 patent)

9.  Mark D Swinford (1 out of 1 patent)

10.  Ralph E Bruce (1 out of 1 patent)

11.  Joseph A Thibault (1 out of 1 patent)


12 patents:

1. 7588059 - Dispensing tool assembly for evacuating and charging a fluid system (2009-09-15),
2. 7575029 - Tool assembly for evacuating, vacuum testing and charging a fluid system through a bleeder valve (2009-08-18),
3. 7404414 - Dispensing tool assembly for evacuating and/or charging a fluid system (2008-07-29),
4. 6799614 - Dispensing tool assembly for a fluid fill tube (2004-10-05),
5. 6298886 - Dispensing tool assembly for evacuating and charging a fluid system (2001-10-09),
6. 6257285 - Dispensing tool assembly for evacuating and charging a fluid system (2001-07-10),
7. 5560407 - Dispensing tool assembly for evacuating and charging a fluid system (1996-10-01),
8. 5439258 - Tube coupling unit (1995-08-08),
9. 5074332 - Hose coupling unit for refrigerant system (1991-12-24),
10. 4889149 - Dispensing tool assembly for charging a refrigerant or other fluid into (1989-12-26),
11. 4805417 - Dispensing tool assembly for charging a refrigerant into a system (1989-02-21),
12. 4032041 - Dispensing apparatus having temperature compensating fluid metering (1977-06-28),
Company Overview
Production Control Units, Inc. is a specialized manufacturer based in Dayton, Ohio, focusing on advanced control systems and automation solutions. The company develops innovative technologies that enhance operational efficiency across various industries, including manufacturing and logistics. With a commitment to precision engineering, Production Control Units, Inc. aims to optimize production processes and improve overall productivity through its cutting-edge products and solutions tailored to meet diverse client needs.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

12 Patents

#54 in Dayton, OH

#1,069 in Ohio

#25,589 in US

#48,235 in the World

Dayton, OH (US)
Dayton, OH, United States of America

Production Control Units, Inc.

Forward Citations = 171

11 inventors:

goldMedal Randy S Robinson (6 out of 7 patents)

silverMedal Matthew A Smith (3 out of 3 patents)

bronzeMedal James M Jones (3 out of 30 patents)

4.  Randy S Stemen (2 out of 2 patents)

5.  Kim A Weaver (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Production Control Units, Inc.. Retrieved from https://idiyas.com/company/production-control-units

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]
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