DJ

Douglas M. Johnson

EM Empak: 4 patents #6 of 30Top 20%
MD Middleville Tool & Die: 2 patents #4 of 12Top 35%
General Motors: 2 patents #6,250 of 18,328Top 35%
FL Fluoroware: 1 patents #34 of 68Top 50%
RL R.T. London: 1 patents #5 of 8Top 65%
Overall (All Time): #516,499 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8356396 Method for making threaded tube Robert L Middleton, Sr., Robert Leroy Middleton, Jr. 2013-01-22
8091201 Stamped tubular member and method and apparatus for making same Robert L Middleton, Sr., Robert Leroy Middleton, Jr., Robert E. Leedy, John A. Nobel 2012-01-10
7866200 Bed pin channel Gregory J. Winer, Robert E. Leedy 2011-01-11
5560507 Reusable shipping container Gerald M. Arpin, Paul R. Smith 1996-10-01
5233827 Radiation supression 1993-08-10
4557382 Disk package 1985-12-10
4520925 Package 1985-06-04
4493418 Wafer processing cassette 1985-01-15
4450960 Package 1984-05-29
4248346 Shipping container for semiconductor substrate wafers 1981-02-03