Inventor · disambiguated record
Tollief O. Hillestad
Also filed as: HILLESTAD TOLLIEF O
9 granted patents·223 citations·filing 1980–1994
90Inventor score
Files withHILLESTAD TOLLIEF O8
Top patents by PatentIndex Score
9 records- 0182US4449871APortable tube milling toolHILLESTAD TOLLIEF O·Filed 1980·Granted May 22, 1984·37 cites·7 claims
- 0280US5033347ABoiler tube cutting apparatusHILLESTAD TOLLIEF O·Filed 1990·Granted Jul 23, 1991·46 cites·52 claims
- 0379US4889454APortable power tool for milling tube endsHILLESTAD TOLLIEF O·Filed 1988·Granted Dec 26, 1989·31 cites·19 claims
- 0472US4761104APortable tube milling toolHILLESTAD TOLLIEF O·Filed 1985·Granted Aug 2, 1988·24 cites·14 claims
- 0565US5199221ATube cutting apparatusHILLESTAD TOLLIEF O·Filed 1992·Granted Apr 6, 1993·24 cites·18 claims
- 0664US5007778APortable power tool for milling tube endsHILLESTAD TOLLIEF O·Filed 1990·Granted Apr 16, 1991·25 cites·56 claims
- 0762US5582538ABoiler tube cutting apparatusFiled 1994·Granted Dec 10, 1996·20 cites·13 claims
- 0845US4620823APortable tube milling toolHILLESTAD TOLLIEF O·Filed 1982·Granted Nov 4, 1986·8 cites·9 claims
- 0943US4915552APortable power tool for milling tube endsHILLESTAD TOLLIEF O·Filed 1989·Granted Apr 10, 1990·8 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →