RS

Robert G. Steffen

UN Unknown: 2 patents #12,644 of 83,584Top 20%
MA Masaba: 1 patents #4 of 8Top 50%
Overall (All Time): #1,683,977 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10513396 Telescoping conveyor drive system Aaron Sudbeck 2019-12-24
4309140 Self-locking threaded fastener and unlocking tool combination David L. Gregory, LeVone A. Blough 1982-01-05
4261093 Tool and method for gaining legitimate entry into a locked enclosure David L. Gregory 1981-04-14