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

Michael Klein — 4 Patents

Basf Se: 3 patents #4,656 of 13,826Top 35%
MIT: 1 patents #4,386 of 9,367Top 50%
Ann Arbor, MI: #1,956 of 6,071 inventorsTop 35%
Michigan: #22,248 of 86,293 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Michael Klein has been granted 4 US patents while listed as an inventor at Basf Se. The first was granted in 1983 and the most recent in July 2015. Michael Klein ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Michael Klein in Ann Arbor, MI, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9090567 Process for preparing ionic liquids by anion exchange Michael Siemer, Diana Fürst, Günter Forster 2015-07-28
8927737 Process for purifying ionic liquids Michael Siemer, Sunghee Son, Klemens Massonne, Uwe Vagt 2015-01-06
8791271 Process for preparing polymeric, ionic imidazolium compounds Michael Siemer, Sebastian Koltzenburg 2014-07-29
4373023 Process for neutralizing heparin Robert S. Langer, Robert J. Linhardt, Charles L. Cooney, Parrish M. Galliher, Margaret M. Flanagan 1983-02-08