Mutlangen
Germany
7
2012-12-27
The entities that hold a legal rights for patent applications filed by inventor Kollotzek Helmut:
Helmut Kollotzek from Mutlangen, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
Casting core for forming a cooling channel in a piston
#2 | 2011-07-21COOLING DUCT FOR A PISTON OF A COMBUSTION ENGINE
#3 | 2011-06-30INLAY PART FOR A PISTON OF AN INTERNAL COMBUSTION ENGINE AND PISTON OR PISTON HEAD PROVIDED WITH THE INLAY PART
#4 | 2010-07-01Casting core for forming a cooling channel in a piston produced by casting
#5 | 2009-10-22Casting core for forming a cooling channel
#6 | 2009-01-29Piston for an internal combustion engine and method for its production
#7 | 2009-01-08Piston for an internal combustion engine
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