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

Peter Kemnitz — 24 Patents

MGMahle International Gmbh: 24 patents #8 of 1,650Top 1%
Leutenbach, DE: #1 of 102 inventorsTop 1%
Overall (All Time): #168,038 of 4,157,543Top 5%
24 Patents All Time
Peter Kemnitz has been granted 24 US patents. The first was granted in 1992 and the most recent in January 2019. Peter Kemnitz ranks #168,038 of 4,157,543 US inventors in our database (top 4.0%). Patent records list Peter Kemnitz in Leutenbach, DE.

Patents per Year

Patents granted per year, 1992 to 2019Bar chart with a peak of 4 patents in 2004.peak 41992: 2 patents19921993: 1 patents1994: 1 patents19941998: 1 patents2000: 2 patents20002001: 1 patents2004: 4 patents20042008: 1 patents2009: 1 patents20092012: 2 patents2013: 1 patents20132014: 2 patents2016: 1 patents20162017: 2 patents2018: 1 patents20182019: 1 patents2019

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDate
10174712 Piston for an internal combustion engine Rainer Scharp 2019-01-08
9869269 Piston for an internal combustion engine Rainer Scharp 2018-01-16
9771891 Piston for an internal combustion engine Rainer Scharp 2017-09-26
9726223 Method for the production of a connecting rod for an internal combustion engine Klaus Keller 2017-08-08
9242317 Method for the production of a piston for an internal combustion engine Rainer Scharp, Michael Ullrich 2016-01-26
8695560 Piston for an internal combustion engine Wolfgang Issler 2014-04-15
8671905 Piston for an internal combustion engine and method for its production Rainer Scharp, Michael Ullrich 2014-03-18
8434400 Piston for an internal combustion engine Carmen Klusch, Rainer Scharp 2013-05-07
8205591 Piston for an internal combustion engine 2012-06-26
8181623 Piston for an internal combustion engine Klaus Keller 2012-05-22
7533649 Piston for an internal combustion engine Alexander Grössle 2009-05-19
7464684 Composite piston for an internal combustion engine Rainer Scharp 2008-12-16
6763758 Multi-part cooled piston for an internal combustion engine Dieter Messmer 2004-07-20
6722263 Bottom covering of a cooling chamber for pistons of internal combustion engines Klaus Keller, Roland Lochmann 2004-04-20
6698391 Multipart cooled piston for a combustion engine 2004-03-02
6698392 Single-part cooling channel piston for a combustion engine Hans-Jurgen Kohnert 2004-03-02
6202619 Piston with a central cooling chamber Klaus Keller, Carmen Klusch 2001-03-20
6048126 Mushroom-type pin retainer Klaus Keller 2000-04-11
6026777 Piston having a barrel of forged steel and a cooling channel Michael Ullrich 2000-02-22
5778533 Method of producing a one-part cooling duct piston 1998-07-14
5357920 Cooled multi-component piston for internal combustion engines Gotthard Stuska, Wolfgang Bierkant 1994-10-25
5261363 Piston with separate head and skirt 1993-11-16
5113817 Piston with specific land characteristics Michael Ullrich, Hanspeter Wieland 1992-05-19
5081967 Piston with separate head and skirt Emil Ripberger 1992-01-21