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For the Inventor, By the Inventor

Eastlake, OH, United States of America

Enpress LLC

Calculating rank
USPTO Granted Patents = 17



Trademarks = 7

Forward Citations = 138

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8 inventors (with patents filed for the assignee):

goldMedal Douglas M Horner (14 out of 26 patents)

silverMedal Douglas S Stolarik (11 out of 14 patents)

bronzeMedal Michael P Mormino (11 out of 14 patents)

4.  Robert John Pristas (4 out of 5 patents)

5.  Richard A Mest (4 out of 4 patents)

6.  Thomas G Carter (3 out of 10 patents)

7.  James R Cooney (1 out of 1 patent)

8.  Justin Fink (1 out of 1 patent)


17 patents:

1. 12203663 - Composite diaphragm expansion vessels (2025-01-21),
2. 11821545 - Convertible head for deionization vessels (2023-11-21),
3. 11428367 - Biaxially oriented blow-molded pressure vessels (2022-08-30),
4. 11426686 - Fluid filter with under-cap metered fluid shut off assembly (2022-08-30),
5. 10183245 - Water filtration system and water filtration system housing with closing assembly (2019-01-22),
6. 9815010 - Water filtration system and water filtration system housing with closing assembly (2017-11-14),
7. 9180391 - Water filtration system and water filtration system housing with closing assembly (2015-11-10),
8. 8486264 - Housing for reverse osmosis filter cartridge and method of forming same (2013-07-16),
9. 8382994 - Method of preparing a composite pressure vessel for use as a water treatment apparatus (2013-02-26),
10. 8377298 - Housing for reverse osmosis filter cartridge and method of forming same (2013-02-19),
11. 8110103 - Flow-control supports for distributor plates in composite pressure vessel assemblies (2012-02-07),
12. 7963400 - Distributor plate for a composite pressure vessel (2011-06-21),
13. 7901576 - Composite water treatment vessel including liquid distributor plates (2011-03-08),
14. 7810670 - Composite pressure vessel assembly (2010-10-12),
15. D591823 - Distributor plate for a pressure vessel (2009-05-05),
Company Overview
Enpress LLC, based in Eastlake, Ohio, specializes in the development and manufacturing of innovative products primarily for the water treatment and filtration industries. The company focuses on creating advanced solutions that enhance water quality and efficiency, catering to both residential and commercial markets. With a commitment to research and development, Enpress is dedicated to improving water management technologies and providing sustainable options for its customers.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

17 Patents

#5 in Eastlake, OH

#808 in Ohio

#18,913 in US

#35,974 in the World

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

Enpress LLC

Forward Citations = 138

8 inventors:

goldMedal Douglas M Horner (14 out of 26 patents)

silverMedal Douglas S Stolarik (11 out of 14 patents)

bronzeMedal Michael P Mormino (11 out of 14 patents)

4.  Robert John Pristas (4 out of 5 patents)

5.  Richard A Mest (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Enpress LLC. Retrieved from https://idiyas.com/company/enpress

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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