Robert Duerr — 3 Patents at D4D Technologies

Robert Duerr has been granted 3 US patents while listed as an inventor at D4D Technologies. The first was granted in 1991 and the most recent in November 2007. Robert Duerr ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Robert Duerr in Port Jefferson Station, NY, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
D555792	Dental laboratory system workstation	Basil Haymann, Joel Witt, Jorey Chernett	2007-11-20
D554757	Digitizer machine for use in a dental laboratory system	Basil Haymann	2007-11-06
5042745	Tilt ramp swept edge nozzle	—	1991-08-27	$5,035,000

Robert Duerr — 3 Patents

Issued Patents All Time

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