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USPTO Patent Rankings Data through Dec 31, 2025
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Hans Klein — 5 Patents

Merck: 4 patents #2,516 of 9,382Top 30%
BGBergwerksverband Gmbh: 1 patents #90 of 243Top 40%
BMW: 1 patents #2,183 of 5,361Top 45%
Hattingen, DE: #24 of 190 inventorsTop 15%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Hans Klein has been granted 5 US patents while listed as an inventor at Merck. The first was granted in 1984 and the most recent in March 1998. Hans Klein ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Hans Klein in Hattingen, DE.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5728316 Salt mixtures for storing thermal energy in the form of that of phase transformation Rudiger Kniep, Peter Kroeschell 1998-03-17 $111,836,000
5591374 Salt mixtures for storing thermal energy in the form of heat of phase transformation Rudiger Kniep, Peter Kroeschell 1997-01-07 $227,680,000
4690745 Targets for cathode sputtering 1987-09-01 $56,816,000
4647548 Targets for cathode sputtering 1987-03-03 $28,443,000
4468970 Compression measuring device Joachim Leonhardt, Bruno Wagener, Wilfried Siefer, Dieter Orbach 1984-09-04