Forward Citations = 33

Loading Chart...

5 inventors (with patents filed for the assignee):

William F Hahn (2 out of 8 patents)

Leo C Ehrenreich (2 out of 2 patents)

Richard M Klingaman (2 out of 2 patents)

4. Hiramie T McAdams (2 out of 2 patents)

5. Robert L Talley (1 out of 2 patents)

4 patents: Sort by Forward Citations

1. 4544102 - Differential rate screening (1985-10-01),

2. 4544101 - Differential rate screening (1985-10-01),

3. 4294750 - Pyroplastoid particles, composition and method of production (1981-10-13),

4. 4268320 - Pyroplastoid particles, composition and method of production (1981-05-19),

Penn Virginia Corporation is an independent oil and gas company focused on the development and production of oil, natural gas liquids, and natural gas in various domestic onshore regions. The company's strategic focus is on increasing reserves, production, and cash flow through organic growth and strategic acquisitions.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

4 Patents

#188 in Philadelphia, PA

#2,183 in Pennsylvania

#58,999 in US

Philadelphia, PA, United States of America

Penn Virginia Corporation