Inventor · disambiguated record
Robert G. Steffen
Also filed as: STEFFEN ROBERT · STEFFEN ROBERT G
3 granted patents·51 citations·filing 1979–2018
70Inventor score
Top patents by PatentIndex Score
3 records- 0172US4261093ATool and method for gaining legitimate entry into a locked enclosureGREGORY DAVID L·Filed 1979·Granted Apr 14, 1981·27 cites·16 claims
- 0260US4309140ASelf-locking threaded fastener and unlocking tool combinationBLOUGH LEVONE A·Filed 1979·Granted Jan 5, 1982·23 cites·4 claims
- 0352US10513396B1Telescoping conveyor drive systemMASABA INC·Filed 2018·Granted Dec 24, 2019·1 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →