Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert M. Hurst — 4 Patents

CUCummins: 4 patents #364 of 2,217Top 20%
Columbus, IN: #412 of 1,378 inventorsTop 30%
Indiana: #8,632 of 33,936 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Robert M. Hurst has been granted 4 US patents while listed as an inventor at Cummins. The first was granted in 2003 and the most recent in June 2005. Robert M. Hurst ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Robert M. Hurst in Columbus, IN, US.

Patents per Year

Patents granted per year, 2003 to 2005Bar chart with a peak of 2 patents in 2003.peak 22003: 2 patents20032004: 1 patents20042005: 1 patents2005

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6907870 Multiple operating mode engine and method of operation Axel O. zur Loye, Larry J. Brackney, Cariappa M. Chenanda, Lester L. Peters, Patrick M. Pierz +1 more 2005-06-21 $19,296,000
6684849 Multiple operating mode engine and method of operation Axel O. zur Loye, Larry J. Brackney, Cariappa M. Chenanda, Lester L. Peters, Patrick M. Pierz +1 more 2004-02-03 $5,484,000
6659071 Internal combustion engine operable in PCCI mode with early control injection and method of operation Leon A. LaPointe, Cariappa M. Chenanda, Tim Frazier, Lester L. Peters, Patrick M. Pierz +1 more 2003-12-09 $7,511,000
6561157 Multiple operating mode engine and method of operation Axel O. zur Loye, Larry J. Brackney, Cariappa M. Chenanda, Lester L. Peters, Patrick M. Pierz +1 more 2003-05-13 $9,463,000