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For the Inventor, By the Inventor

Willoughby, OH, United States of America

The Nupro Company


USPTO Granted Patents = 34

Trademarks = 1

Forward Citations = 675

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31 inventors (with patents filed for the assignee):

goldMedal Gary W Scheffel (12 out of 12 patents)

silverMedal Terrence J Kolenc (9 out of 9 patents)

bronzeMedal Earl D Shufflebarger (8 out of 9 patents)

4.  Oliver L Danko (7 out of 8 patents)

5.  William C Steiss (7 out of 7 patents)

6.  William P Tobbe (5 out of 5 patents)

7.  Carl R Bork, Jr (5 out of 5 patents)

8.  Theodore J Gausman (4 out of 4 patents)

9.  Edward E Kish, Jr (3 out of 4 patents)

10.  Thomas J Gardner (2 out of 4 patents)

11.  Donald J Murauskas (2 out of 2 patents)

12.  Frank M Cunningham (2 out of 2 patents)

13.  Bernard J Gallagher (2 out of 9 patents)

14.  John R Boylan (2 out of 2 patents)

15.  James K Simonelli (2 out of 2 patents)


Core Competencies:
Fluid Control
Diaphragm Valves
Check Valves
Pressure Regulators
Inflatable Valves
Flow Control
High Pressure Valves
Low Pressure Relief
Metering Valves
Seal Rings
Plug Valves
Fluid Filters

34 patents:

1. 5601713 - Filter systems and apparatus (1997-02-11),
2. 5462081 - Excess flow valve (1995-10-31),
3. 5335691 - High pressure diaphragm valve (1994-08-09),
4. D345490 - Pie cutting tool (1994-03-29),
5. 5253671 - High pressure diaphragm valve (1993-10-19),
6. 5215286 - High pressure diaphragm valve (1993-06-01),
7. 5131627 - Diaphragm valve (1992-07-21),
8. 5033505 - Pressure regulator and method of assembling same (1991-07-23),
9. 4968003 - Diaphragm valve (1990-11-06),
10. 4964423 - Check valve (1990-10-23),
11. 4917357 - Diaphragm valve (1990-04-17),
12. 4915353 - Diaphragm valve (1990-04-10),
13. 4911412 - Valves with improved actuators (1990-03-27),
14. 4856555 - Check valve (1989-08-15),
15. 4840191 - Inflatable valve (1989-06-20),
Company Overview
The Nupro Company, based in Willoughby, Ohio, specializes in the development and manufacturing of high-quality dental products and solutions. With a focus on innovation, Nupro offers a range of products designed to enhance oral health and improve dental practices. The company is committed to advancing dental technology and providing practitioners with effective tools that support patient care. Nupro's expertise spans various aspects of dental hygiene and treatment, making it a trusted name in the dental industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

34 Patents

#3 in Willoughby, OH

#438 in Ohio

#10,014 in US

#19,631 in the World

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

The Nupro Company

Forward Citations = 675

31 inventors:

goldMedal Gary W Scheffel (12 out of 12 patents)

silverMedal Terrence J Kolenc (9 out of 9 patents)

bronzeMedal Earl D Shufflebarger (8 out of 9 patents)

4.  Oliver L Danko (7 out of 8 patents)

5.  William C Steiss (7 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: The Nupro Company. Retrieved from https://idiyas.com/company/nupro-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]
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