% Expired Patents = 50.0

EPO Patents = 1

Forward Citations = 83

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6 inventors (with patents filed for the assignee):

John A Barclay (4 out of 15 patents)

Tadeusz Szymanski (2 out of 3 patents)

Michael Barclay (2 out of 3 patents)

4. Lenard J Stoltman (2 out of 2 patents)

5. Hunter A Chumbley (2 out of 2 patents)

6. Kathryn Midori Oseen-Senda (2 out of 6 patents)

7. Ingo Ehmann (0 patent)

8. Lennart KÄRRBERG (0 patent)

4 patents: Sort by Forward Citations

1. 9302215 - Rotary fluid processing systems and associated methods (2016-04-05),

2. 8852328 - Rotary fluid processing systems and associated methods (2014-10-07),

3. 8025720 - Systems and methods for processing methane and other gases (2011-09-27),

4. 7744677 - Systems and methods for processing methane and other gases (2010-06-29),

Company Overview

Prometheus Technologies is a leading provider of innovative technology solutions for businesses across various industries. With a focus on cutting-edge software development, cloud computing, and cybersecurity, we help our clients stay ahead of the competition and achieve their business goals. Our team of expert engineers and developers is dedicated to delivering high-quality, customized solutions that drive efficiency and growth. Contact us today to learn how we can help your business thrive in the digital age.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

4 Patents

#108 in Redmond, WA

#1,464 in Washington

#60,671 in US

Redmond, WA, United States of America

Prometheus Technologies, LLC

Forward Citations = 83

6 inventors:

John A Barclay (4 out of 15 patents)

Tadeusz Szymanski (2 out of 3 patents)

Michael Barclay (2 out of 3 patents)

4. Lenard J Stoltman (2 out of 2 patents)

5. Hunter A Chumbley (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Prometheus Technologies, LLC. Retrieved from https://idiyas.com/company/prometheus-technologies

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]

1 patent (EPO):

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]