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

Robert Graumüller — 6 Patents

Caterpillar: 6 patents #1,099 of 8,398Top 15%
Kiel, DE: #47 of 471 inventorsTop 10%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Robert Graumüller has been granted 6 US patents while listed as an inventor at Caterpillar. The first was granted in 2019 and the most recent in September 2025. Robert Graumüller ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Robert Graumüller in Kiel, DE.

Patents per Year

Patents granted per year, 2019 to 2025Bar chart with a peak of 2 patents in 2024.peak 22019: 1 patents20192022: 1 patents20222024: 2 patents20242025: 2 patents2025

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12429005 Systems and methods for providing a diesel-methanol emulsion for direct injection engines Michael Gerstner, Daniel R. Baldwin, Eric Lee Schroeder 2025-09-30
12297795 Multi-function fuel injector valve in dual fuel system and fuel system operating method Eric Lee Schroeder, Dana R. Coldren, Kaushik Krishnamurthy, Dean Diers, Lifeng Wang +1 more 2025-05-13
12104564 High pressure fuel pump lubrication method and apparatus 2024-10-01 $140,317,000
11898506 Two stage mixed fuel sensing system Michael Gerstner, Daniel R. Baldwin 2024-02-13 $57,373,000
11384699 Method of operating a gaseous fuel internal combustion engine Eike Joachim Sixel, Daniel Wester, Marius Wolfgramm, Andre Schmidt 2022-07-12 $83,548,000
10471374 Filtration system for providing clean fuel Troy D. Cope 2019-11-12 $28,152,000