Wermelskirchen
Germany
13
2020-10-01
The entities that hold a legal rights for patent applications filed by inventor Lammers Ralf:
Ralf Lammers from Wermelskirchen, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
Piston ring
#2 | 2018-09-13PISTON RING
#3 | 2016-05-05Method for producing piston a ring
#4 | 2015-12-17Sliding element, in particular a piston ring, having a coating
#5 | 2015-10-15Sliding element, in particular a piston ring, having a coating
#6 | 2014-12-04Piston ring
#7 | 2013-05-30METHOD FOR COATING AT LEAST THE INNER FACE OF A PISTON RING AND PISTON RING
#8 | 2012-09-13Piston ring
#9 | 2010-07-29Piston ring
#10 | 2010-07-08Piston ring
#11 | 2010-02-25Piston ring for internal combustion engines
#12 | 2010-02-25Piston ring for internal combustion engines
#13 | 2009-01-01Sliding element, in particular piston ring, method for manufacturing a sliding element, sliding system and coating for a sliding element
988547 ⎘