Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
LH

Lee E. Huffman — 2 Patents

Caterpillar: 2 patents #2,997 of 8,398Top 40%
Princeville, IL: #17 of 35 inventorsTop 50%
Illinois: #34,875 of 84,256 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Lee E. Huffman has been granted 2 US patents while listed as an inventor at Caterpillar. The first was granted in 1997 and the most recent in April 1999. Lee E. Huffman ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Lee E. Huffman in Princeville, IL, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5895172 Control system and method for operating an asphalt paver screed burner system Conrad G. Grembowicz, Wade D. Samson 1999-04-20 $64,864,000
5607254 Method and apparatus for automatically controlling the temperature of an asphalt paver screed Conrad G. Grembowicz, Wade D. Samson 1997-03-04 $11,815,000