logo

For the Inventor, By the Inventor

Hiram, OH, United States of America

Duramax Marine, LLC


USPTO Granted Patents = 21

% Expired Patents = 23.8



Trademarks = 17

Forward Citations = 134

Loading Chart...
Loading Chart...

12 inventors (with patents filed for the assignee):

goldMedal Roy L Orndorff, Jr (9 out of 30 patents)

silverMedal Michael W Brakey (7 out of 7 patents)

bronzeMedal Jeffrey S Leeson (7 out of 9 patents)

4.  P Charles Miller, Jr (5 out of 5 patents)

5.  Frank E Horvat (3 out of 3 patents)

6.  Eric K Peoples (3 out of 3 patents)

7.  Philip Paul Brady (2 out of 4 patents)

8.  Warren Keith Langston (2 out of 3 patents)

9.  George MacDonald (2 out of 3 patents)

10.  Steven Rericha (1 out of 1 patent)

11.  Richard C Spangler (1 out of 1 patent)

12.  Joseph Harry Andulics (1 out of 10 patents)

13.  P Charles Miller (0 patent)

14.  P Charles Miller (0 patent)


21 patents:

1. 10697703 - Marine heat exchanger (2020-06-30),
2. 10179637 - Turbulence enhancer for keel cooler (2019-01-15),
3. 9957030 - Turbulence enhancer for keel cooler (2018-05-01),
4. 8376029 - Keel cooler with fluid flow diverter (2013-02-19),
5. 7490992 - Integral bearing unit made from a slippery/polymer alloy (2009-02-17),
6. 7481262 - Keel cooler with fluid flow diverter (2009-01-27),
7. 7328740 - Heat exchanger with beveled header (2008-02-12),
8. 7290932 - Stave bearing assembly and stave for a bearing assembly (2007-11-06),
9. 7201213 - Keel cooler with fluid flow diverter (2007-04-10),
10. 7044194 - Heat exchanger with beveled header (2006-05-16),
11. 6921206 - Stave bearing assembly and stave for a bearing assembly (2005-07-26),
12. 6896037 - Keel cooler with fluid flow diverter (2005-05-24),
13. 6866271 - Marine shaft seal with lip seal, bearing and gasket (2005-03-15),
14. 6682804 - Fender protective structure (2004-01-27),
15. 6648510 - SPA super demountable bearing (2003-11-18),
Company Overview
Duramax Marine, LLC is a specialized manufacturer based in Hiram, Ohio, focusing on innovative solutions for the marine industry. The company is known for its expertise in developing advanced marine products, including bearings, seals, and other critical components that enhance the performance and reliability of marine vessels. With a commitment to quality and engineering excellence, Duramax Marine serves a diverse clientele, contributing to the advancement of maritime technology and safety across various applications.
Profile summary synthesized from public USPTO records and patent filings.

logo

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

21 Patents

#1 in Hiram, OH

#681 in Ohio

#15,695 in US

#29,961 in the World

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

Duramax Marine, LLC

Forward Citations = 134

12 inventors:

goldMedal Roy L Orndorff, Jr (9 out of 30 patents)

silverMedal Michael W Brakey (7 out of 7 patents)

bronzeMedal Jeffrey S Leeson (7 out of 9 patents)

4.  P Charles Miller, Jr (5 out of 5 patents)

5.  Frank E Horvat (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Duramax Marine, LLC. Retrieved from https://idiyas.com/company/duramax-marine

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]
Loading…