Daniel Keller — 6 Patents at Newfrey

Daniel Keller has been granted 6 US patents while listed as an inventor at Newfrey. The first was granted in 2004 and the most recent in January 2020. Daniel Keller ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Daniel Keller in Portland, OR, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date
10527483	Automated dosage-dispensing system for powdery substances, and method of ascertaining that the system is ready for operation	Michalis Meyer, Jan Hofmann, René Weber	2020-01-07
10496253	Tree-diagram design interface processes for creating surveys, simulations, and intelligent tutoring systems	—	2019-12-03
D501392	Door handle	Rockwood T. Roberts, III	2005-02-01
D500242	Door handle	Rockwood T. Roberts, III	2004-12-28
D499952	Door handle	Rockwood T. Roberts, III	2004-12-21
D499632	Door handle	Rockwood T. Roberts, III	2004-12-14

Daniel Keller — 6 Patents

Issued Patents All Time

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