John F. Schaffer — 1 Patent at Levolor

John F. Schaffer has been granted 1 US patent while listed as an inventor at Levolor. All of these patents were granted in 1991. John F. Schaffer ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list John F. Schaffer in Newport Beach, CA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5042553	Window blind headrail and mounting bracket	Sandra K. Young, David C. Burns, Don S. Minami	1991-08-27

John F. Schaffer — 1 Patent

Issued Patents All Time

Patent Widget