TC

Thomas R. Campbell

AL Astec International Limited: 14 patents #1 of 87Top 2%
JL Johnson Matthey Public Limited: 1 patents #446 of 922Top 50%
LO Lor: 1 patents #4 of 11Top 40%
RO Roadtec: 1 patents #18 of 27Top 70%
📍 Kingwood, TX: #78 of 726 inventorsTop 15%
🗺 Texas: #7,815 of 125,132 inventorsTop 7%
Overall (All Time): #251,288 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
11618014 Method of coating a substrate with a particle stabilized foam Cecilia Bernadini, Guy Richard Chandler, Christopher Daly, Katharine Ann HARDSTONE, Thomas HOTCHKISS +1 more 2023-04-04
9109333 Hopper insert for asphalt paving machine David Swearingen 2015-08-18
7546883 Vibratory plow David Doering 2009-06-16
6733086 Vacuum system for milling machine Chris McSharry 2004-05-11
6033031 Milling machine with vibrating mechanism and rotary drum 2000-03-07
5868522 Vibratory screed assembly for an asphalt paving machine 1999-02-09
5851085 Method and apparatus for spraying a tack material from a paving machine having a gravity feed hopper 1998-12-22
5642961 Method for conveying and desegregating aggregate 1997-07-01
5615973 Paving machine with gravity feed hopper and auger mechanism 1997-04-01
5553968 Method and apparatus for conveying and desegregating aggregate 1996-09-10
5533828 Method and apparatus for discharging paving materials on top of distributing auger 1996-07-09
5533829 Paving machine with mixing device and discharge conveyor assembly for remixing segregated paving materials 1996-07-09
5441361 Field convertible apparatus for conducting either front load road planing operation or cold in-place recycling operation 1995-08-15
5405214 Paving machine incorporating automatic feeder control gates 1995-04-11
5348418 Asphalt finishing screed having rotary compactor 1994-09-20
5315770 Roadway trenching apparatus 1994-05-31
5078540 Asphalt pavement milling machine and cutter drum therefor Herbert E. Jakob 1992-01-07
4565252 Borehole operating tool with fluid circulation through arms William L. Cunningham, Gregg S. Perkin 1986-01-21