Helmut Gruner — 2 Patents at Basf Se

Helmut Gruner has been granted 2 US patents while listed as an inventor at Basf Se. The first was granted in 1999 and the most recent in May 2000. Helmut Gruner ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Helmut Gruner in Schwarzheide, DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6063957	Preparation of esters of low residual acid content from .alpha., .beta.-ethylenically unsaturated carboxylic acids and hydroxyl-containing polymers	Rainer Koniger, Wolfgang Reich, Erich Beck	2000-05-16
5917059	Preparation of cyclic acetals or ketals	Bernd Bruchmann, Karl Haberle, Michael Hirn	1999-06-29

Helmut Gruner — 2 Patents

Issued Patents All Time

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