HJ

Harold D. Johnson

GM Graco Minnesota: 21 patents #28 of 381Top 8%
GR Graco: 5 patents #10 of 149Top 7%
HA Halliburton: 3 patents #227 of 857Top 30%
MS Manville Service: 2 patents #12 of 114Top 15%
HS Halliburton Energy Services: 2 patents #2,138 of 4,711Top 50%
SI Smith International: 1 patents #390 of 708Top 60%
HL Hendrickson Usa, L.L.C.: 1 patents #100 of 165Top 65%
PW Pure Water: 1 patents #8 of 15Top 55%
📍 Zimmerman, MN: #1 of 80 inventorsTop 2%
🗺 Minnesota: #1,515 of 52,454 inventorsTop 3%
Overall (All Time): #93,350 of 4,157,543Top 3%
36
Patents All Time

Issued Patents All Time

Showing 26–36 of 36 patents

Patent #TitleCo-InventorsDate
D382500 Dispensing meter Steven Plager 1997-08-19
5567130 Reinforced cover configuration for a diaphragm pump Daniel J. Kvinge 1996-10-22
5368452 Double diaphragm pump having two-stage air valve actuator Daniel J. Kvinge, Steven Plager, Richard D. Zarneke 1994-11-29
5332048 Method and apparatus for automatic closed loop drilling system Lance D. Underwood, Charles H. Dewey 1994-07-26
5318137 Method and apparatus for adjusting the position of stabilizer blades Charles H. Dewey, Lance D. Underwood 1994-06-07
5318138 Adjustable stabilizer Charles H. Dewey, Lance D. Underwood 1994-06-07
D345138 Air motor Frederick A. Powers 1994-03-15
5171139 Moineau motor with conduits through the stator Lance D. Underwood, Charles H. Dewey, Mark J. Hommel 1992-12-15
D316739 Water distilling unit Theodore B. Erickson, Ivan F. Reed 1991-05-07
4583679 Resealable paperboard package 1986-04-22
4449633 Ovenable paperboard carton Earle C. Sherman, Leonard M. Cooper 1984-05-22