Trademarks = 6

Forward Citations = 49

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7 inventors (with patents filed for the assignee):

Bernard P Breen (5 out of 36 patents)

James E Gabrielson (5 out of 26 patents)

John P Bionda (4 out of 5 patents)

4. Anthony Hallo (4 out of 5 patents)

5. Roger W Glickert (2 out of 5 patents)

6. Gerard F Gretz (1 out of 1 patent)

7. Joseph Cavello (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 6030204 - Method for NO.sub.x reduction by upper furnace injection of solutions of (2000-02-29),

2. 5746144 - Method and apparatus for nox reduction by upper furnace injection of (1998-05-05),

3. 5724897 - Split flame burner for reducing NO.sub.x formation (1998-03-10),

4. 5568777 - Split flame burner for reducing NOx formation (1996-10-29),

5. 5546874 - Low nox inter-tube burner for roof-fired furnaces (1996-08-20),

Company Overview

Duquesne Light Company is a Pittsburgh-based utility that provides electricity to over 500,000 customers in Allegheny and Beaver counties. Founded in 1912, the company is committed to delivering safe, reliable, and affordable energy to homes and businesses in the region.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

5 Patents

#276 in Pittsburgh, PA

#1,871 in Pennsylvania

#51,620 in US

Pittsburgh, PA, United States of America

Duquesne Light Company

Forward Citations = 49

7 inventors:

Bernard P Breen (5 out of 36 patents)

James E Gabrielson (5 out of 26 patents)

John P Bionda (4 out of 5 patents)

4. Anthony Hallo (4 out of 5 patents)

5. Roger W Glickert (2 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Duquesne Light Company. Retrieved from https://idiyas.com/company/duquesne-light-company

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]