Mark P. DiStefano — 3 Patents at Conoco

Mark P. DiStefano has been granted 3 US patents while listed as an inventor at Conoco. The first was granted in 1988 and the most recent in January 1993. Mark P. DiStefano ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Mark P. DiStefano in Ponca City, OK, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
5176219	Method of sealing holes in the ground	Jack H. Cole, C. Michael Swindoll	1993-01-05
5172450	Shaft cleaning and decontamination apparatus	Jack H. Cole, C. Michael Swindoll	1992-12-22
4739654	Method and apparatus for downhole chromatography	Paul E. Pilkington, Marvin C. Allen	1988-04-26

Mark P. DiStefano — 3 Patents

Issued Patents All Time

Patent Widget