Trademarks = 1

Forward Citations = 41

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5 inventors (with patents filed for the assignee):

Yoram Ringer (2 out of 65 patents)

James S Porter (2 out of 2 patents)

Jan E Sandgren (1 out of 5 patents)

4. Fred Rathburn (1 out of 1 patent)

5. Jan E Sangren (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 5967525 - Drive mechanism for a rotating mechanical split seal and method of (1999-10-19),

2. 5954341 - Bellows seal with drive collar for reverse pressure capability (1999-09-21),

3. 5913521 - Rotating seal ring component kit for a mechanical split seal (1999-06-22),

4. 5873574 - Bellows seal with reverse pressure capability (1999-02-23),

Company Overview

John Crane Sealol Inc. is a leading provider of engineered sealing solutions for a wide range of industries, including oil and gas, chemical, pharmaceutical, and more. With a focus on innovation and quality, we offer a comprehensive portfolio of sealing products designed to meet the demanding needs of our customers. Our team of experts is dedicated to providing superior service and support to ensure the success of every project. Visit our website to learn more about our products and services.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#16 in Cranston, RI

#265 in Rhode Island

#60,597 in US

Cranston, RI, United States of America

John Crane Sealol Inc.

Forward Citations = 41

5 inventors:

Yoram Ringer (2 out of 65 patents)

James S Porter (2 out of 2 patents)

Jan E Sandgren (1 out of 5 patents)

4. Fred Rathburn (1 out of 1 patent)

5. Jan E Sangren (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: John Crane Sealol Inc.. Retrieved from https://idiyas.com/company/john-crane-sealol

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]