% Expired Patents = 25.0

EPO Patents = 2

Forward Citations = 166

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5 inventors (with patents filed for the assignee):

David F Wilson (4 out of 20 patents)

Sergei A Vinogradov (2 out of 11 patents)

Tatiana V Esipova (1 out of 2 patents)

4. Jennifer A Johnson (1 out of 1 patent)

5. Benjamin W Dugan (1 out of 1 patent)

6. Sergei Vinogradov (0 patent)

4 patents: Sort by Forward Citations

1. 10493168 - Phosphorescent meso-unsubstituted metallo-porphyrin probe molecules for measuring oxygen and imaging methods (2019-12-03),

2. 8135449 - Imaging of oxygen by phosphorescence quenching (2012-03-13),

3. 7575890 - Method for rapid detection and evaluation of cultured cell growth (2009-08-18),

4. 6056420 - Illuminator (2000-05-02),

Company Overview

Oxygen Enterprises, Ltd is a leading provider of innovative oxygen therapy solutions for healthcare professionals and patients worldwide. With a focus on quality, reliability, and performance, we strive to improve the lives of those who rely on our products. Our range of oxygen therapy equipment includes oxygen concentrators, portable oxygen tanks, and accessories to meet the diverse needs of our customers.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

4 Patents

#193 in Philadelphia, PA

#2,214 in Pennsylvania

#60,671 in US

Philadelphia, PA, United States of America

Oxygen Enterprises, Ltd

Forward Citations = 166

5 inventors:

David F Wilson (4 out of 20 patents)

Sergei A Vinogradov (2 out of 11 patents)

Tatiana V Esipova (1 out of 2 patents)

4. Jennifer A Johnson (1 out of 1 patent)

5. Benjamin W Dugan (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Oxygen Enterprises, Ltd. Retrieved from https://idiyas.com/company/oxygen-enterprises

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]

2 patents (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]