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For the Inventor, By the Inventor

Ravenna, OH, United States of America

Springseal, Inc.

Calculating rank
USPTO Granted Patents = 19

% Expired Patents = 10.5

Trademarks = 4

Forward Citations = 164

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2 inventors (with patents filed for the assignee):

goldMedal Mark Knapp (19 out of 35 patents)

silverMedal Jeffrey Michael Smith (1 out of 5 patents)


19 patents:

1. 11629803 - Pipe coupling assembly (2023-04-18),
2. D980954 - Coupling assembly (2023-03-14),
3. 11400782 - Axle assembly and method of manufacture i'hereof (2022-08-02),
4. D865918 - Coupling assembly (2019-11-05),
5. 10046516 - Flexible hinge gasket (2018-08-14),
6. 9752711 - Pipe coupling assembly (2017-09-05),
7. 9746112 - Permanently lubricated film gasket and method of manufacture (2017-08-29),
8. 9228684 - Sealing gasket (2016-01-05),
9. 8834761 - Permanently lubricated film gasket and method of manufacture (2014-09-16),
10. 8801049 - Pipe coupling system and method (2014-08-12),
11. D706908 - Gasket (2014-06-10),
12. 8747584 - Flashless welding method and apparatus (2014-06-10),
13. 8727387 - Pipe coupling assembly (2014-05-20),
14. 8678399 - Gasket (2014-03-25),
15. 8474830 - Gasket (2013-07-02),
Company Overview
Springseal, Inc. is a specialized manufacturer based in Ravenna, Ohio, focusing on innovative sealing solutions and advanced materials. The company is dedicated to developing high-performance products that cater to various industries, including automotive, aerospace, and industrial applications. With a commitment to research and development, Springseal leverages cutting-edge technology to enhance product durability and efficiency, ensuring that their solutions meet the evolving needs of their clients in a competitive market.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

Springseal, Inc. USPTO Patent Assignee Logo
19 Patents

#1 in Ravenna, OH

#738 in Ohio

#17,154 in US

#32,705 in the World

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

Springseal, Inc.

Forward Citations = 164

2 inventors:

goldMedal Mark Knapp (19 out of 35 patents)

silverMedal Jeffrey Michael Smith (1 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Springseal, Inc.. Retrieved from https://idiyas.com/company/springseal

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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