DB

Donald R. Buttle

NC National Controls: 3 patents #2 of 10Top 20%
GR Grindmaster: 1 patents #18 of 54Top 35%
TL Trw Limited: 1 patents #979 of 2,166Top 50%
📍 Bolingbrook, IL: #119 of 491 inventorsTop 25%
🗺 Illinois: #17,877 of 84,256 inventorsTop 25%
Overall (All Time): #1,054,382 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5662955 Calibration method and apparatus for coffee grinder and brewer William A. Joseph, Jr., David G. Motkowski 1997-09-02
5660336 Control apparatus and method for coffee grinder and brewer William A. Joseph, Jr., David G. Motkowski 1997-08-26
5417145 Control apparatus and method for coffee grinder and brewer William A. Joseph, Jr., David G. Motkowski 1995-05-23
5285705 Continuous acting moisture prevention and cleaning valve Christopher James Kenny, Brian D. Newnan 1994-02-15
4721957 Ground shift compensated parameter measurement system 1988-01-26