Norbert Liermann — 2 Patents at ExxonMobil

Norbert Liermann has been granted 2 US patents while listed as an inventor at ExxonMobil. The first was granted in 1985 and the most recent in August 1989. Norbert Liermann ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Norbert Liermann in Bergen, DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4857297	Process for the reduction of the sulfur content in a gaseous stream	Roland Kettner, Torsten Lubcke	1989-08-15	$7,035,000
4552746	Process for the reduction of the sulfur content in a gaseous stream	Roland Kettner, Torsten Lubcke	1985-11-12

Norbert Liermann — 2 Patents

Issued Patents All Time

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