Assignee
LOFFLAND BROTHERS
10 granted patents·191 citations·filing 1976–1984
Top patents by PatentIndex Score
10 records- 0182US4136747AMethod and means for reduction of oxygen content in drilling fluidLOFFLAND BROTHERS·Filed 1976·Granted Jan 30, 1979·57 cites·8 claims
- 0272US4226311ARotary drive disc brake for drawworksLOFFLAND BROTHERS·Filed 1978·Granted Oct 7, 1980·20 cites·5 claims
- 0367US4350505ADevice for reduction of oxygen content in drilling fluidLOFFLAND BROTHERS·Filed 1978·Granted Sep 21, 1982·32 cites·1 claims
- 0461US4335808AMultiple biscuit clutch or brakeLOFFLAND BROTHERS·Filed 1980·Granted Jun 22, 1982·14 cites·9 claims
- 0559US4184838AIgniter for oil and/or gas well drilling operationLOFFLAND BROTHERS·Filed 1977·Granted Jan 22, 1980·23 cites·8 claims
- 0658US4168768ABraking system for cable spooling drumsLOFFLAND BROTHERS·Filed 1977·Granted Sep 25, 1979·13 cites·5 claims
- 0756US4566579AMultiple biscuit clutch or brake with circulated immersion coolingLOFFLAND BROTHERS·Filed 1984·Granted Jan 28, 1986·12 cites·8 claims
- 0848US4144953ARotary drive disc brake for drawworksLOFFLAND BROTHERS·Filed 1977·Granted Mar 20, 1979·9 cites·4 claims
- 0930US4203575AHydraulic elevating rampLOFFLAND BROTHERS·Filed 1979·Granted May 20, 1980·3 cites·5 claims
- 1026US4365692AElevating catwalkLOFFLAND BROTHERS·Filed 1980·Granted Dec 28, 1982·8 cites·6 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →