LP

Leonard J. Persinski

CH Clearwater Holdings: 7 patents #4 of 25Top 20%
CA Calgon: 3 patents #47 of 151Top 35%
📍 Pittsburgh, PA: #792 of 7,570 inventorsTop 15%
🗺 Pennsylvania: #8,192 of 74,527 inventorsTop 15%
Overall (All Time): #525,877 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
6054417 Rapid gel formation in hydrocarbon recovery Rhonda L. Graham 2000-04-25
6004908 Rapid gel formation in hydrocarbon recovery Rhonda L. Graham 1999-12-21
5693837 Ferric alkyl amine citrates and methods of making them Kevin W. Smith 1997-12-02
5647900 Preparation of hydrocarbon gels from ferric sources, polycarboxylic acid compounds, and optional amines, in combination with phosphate esters Kevin W. Smith 1997-07-15
5614010 Hydrocarbon gels useful in formation fracturing Kevin W. Smith 1997-03-25
5571315 Hydrocarbon gels useful in formation fracturing Kevin W. Smith 1996-11-05
5417287 Hydrocarbon gels useful in formation fracturing Kevin W. Smith 1995-05-23
5087376 Multifunctional scale inhibitors Beverly Bendiksen, Raymond J. Schaper 1992-02-11
4936987 Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers Jerry L. Walker, Bennett P. Boffardi 1990-06-26
4640793 Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers Jerry L. Walker, Bennett P. Boffardi 1987-02-03