Robert J. Eisbrenner — 2 Patents at John Crane

Robert J. Eisbrenner has been granted 2 US patents while listed as an inventor at John Crane. The first was granted in 1992 and the most recent in April 1993. Robert J. Eisbrenner ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert J. Eisbrenner in Glenview, IL, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5199720	Split mechanical face seal	Jon J. Radosav, Thomas A. Evans, David M. Dudek, Russell G. Wieser, Brian J. Atwater	1993-04-06	$2,664,000
5114163	Split mechanical face seal	Jon J. Radosav, Thomas A. Evans, David M. Dudek, Russell G. Wieser, Brian J. Atwater	1992-05-19	$6,576,000

Robert J. Eisbrenner — 2 Patents

Issued Patents All Time

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