Inventor · disambiguated record
Thomas R. Campbell
Also filed as: CAMPBELL THOMAS · CAMPBELL THOMAS R · CAMPBELL THOMAS ROGER
18 granted patents·1 pending application·844 citations·filing 1984–2023
96Inventor score
Top patents by PatentIndex Score
19 records- 0194US5315770ARoadway trenching apparatusASTEC IND·Filed 1992·Granted May 31, 1994·84 cites·29 claims
- 0294US4565252ABorehole operating tool with fluid circulation through armsLOR INC·Filed 1984·Granted Jan 21, 1986·199 cites·12 claims
- 0391US5078540AAsphalt pavement milling machine and cutter drum thereforASTEC IND·Filed 1990·Granted Jan 7, 1992·80 cites·16 claims
- 0489US6733086B1Vacuum system for milling machineRI PROPERTIES INC·Filed 2002·Granted May 11, 2004·55 cites·18 claims
- 0588US5851085AMethod and apparatus for spraying a tack material from a paving machine having a gravity feed hopperASTEC IND·Filed 1996·Granted Dec 22, 1998·56 cites·20 claims
- 0688US5533829APaving machine with mixing device and discharge conveyor assembly for remixing segregated paving materialsASTEC IND·Filed 1995·Granted Jul 9, 1996·59 cites·10 claims
- 0784US5615973APaving machine with gravity feed hopper and auger mechanismASTEC IND·Filed 1994·Granted Apr 1, 1997·55 cites·17 claims
- 0881US5441361AField convertible apparatus for conducting either front load road planing operation or cold in-place recycling operationASTEC IND·Filed 1993·Granted Aug 15, 1995·47 cites·22 claims
- 0979US7546883B1Vibratory plowASTEC IND·Filed 2006·Granted Jun 16, 2009·13 cites·20 claims
- 1079US5348418AAsphalt finishing screed having rotary compactorASTEC IND·Filed 1992·Granted Sep 20, 1994·43 cites·19 claims
- 1176US5405214APaving machine incorporating automatic feeder control gatesASTEC IND·Filed 1993·Granted Apr 11, 1995·36 cites·15 claims
- 1273US6033031AMilling machine with vibrating mechanism and rotary drumASTEC IND·Filed 1998·Granted Mar 7, 2000·35 cites·15 claims
- 1373US2023191379A1Emissions control deviceJOHNSON MATTHEY PLC·Filed 2023·Application pending·0 cites
- 1466US5553968AMethod and apparatus for conveying and desegregating aggregateASTEC IND·Filed 1994·Granted Sep 10, 1996·25 cites·10 claims
- 1566US5533828AMethod and apparatus for discharging paving materials on top of distributing augerASTEC IND·Filed 1995·Granted Jul 9, 1996·22 cites·14 claims
- 1658US5868522AVibratory screed assembly for an asphalt paving machineASTEC IND·Filed 1997·Granted Feb 9, 1999·22 cites·20 claims
- 1755US11618014B2Method of coating a substrate with a particle stabilized foamJOHNSON MATTHEY PLC·Filed 2017·Granted Apr 4, 2023·0 cites·14 claims
- 1852US9109333B2Hopper insert for asphalt paving machineCAMPBELL THOMAS R·Filed 2012·Granted Aug 18, 2015·2 cites·13 claims
- 1944US5642961AMethod for conveying and desegregating aggregateASTEC IND·Filed 1996·Granted Jul 1, 1997·11 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →