David Risch — 2 Patents at Inventio Ag

David Risch has been granted 2 US patents while listed as an inventor at Inventio Ag. The first was granted in 2002 and the most recent in May 2012. David Risch ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David Risch in Shanghai, CN.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
8181312	End-connector and method for fastening a flat-belt type suspension means of an elevator system	Adrian Attinger, Daniel Fischer	2012-05-22
6464042	Strut for coupling linear drive to elevator car or counterweight	Johannes Kocher	2002-10-15

David Risch — 2 Patents

Issued Patents All Time

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