Robert M. Siebert — 6 Patents at Conoco

Robert M. Siebert has been granted 6 US patents while listed as an inventor at Conoco. The first was granted in 1985 and the most recent in February 2001. Robert M. Siebert ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Robert M. Siebert in Ponca City, OK, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date
6185819	Catalytic converter housing arrangement	Helmut Bauer, Olaf Herden, Werner Harsch	2001-02-13
5653287	Cryogenic well stimulation method	Dennis R. Wilson, Pat Lively	1997-08-05
5464061	Cryogenic coal bed gas well stimulation method	Dennis R. Wilson, Pat Lively	1995-11-07
5068969	Lighted gun sight	—	1991-12-03
4764903	Method and apparatus to determine permeability of rock formations adjacent a borehole	—	1988-08-16
4495292	Determination of expandable clay minerals at well sites	Richard Lahann	1985-01-22

Robert M. Siebert — 6 Patents

Issued Patents All Time

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