Gerrit E. Bartman — 2 Patents at U.S. Philips

Gerrit E. Bartman has been granted 2 US patents while listed as an inventor at U.S. Philips. The first was granted in 1983 and the most recent in January 1990. Gerrit E. Bartman ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Gerrit E. Bartman in Eindhoven, NL.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4891053	Method of manufacturing biconvex lens elements and element formed thereby	Nicodemus Hattu, Willem Johannes Lindhout, Sebastiaan F. M. Trommelen	1990-01-02
4398935	Method and device for the high-precision manufacture of glass articles, in particular lenses	Hendricus F. G. Smulders	1983-08-16	$480,000

Gerrit E. Bartman — 2 Patents

Issued Patents All Time

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