Kollotzek; Helmut

Patent Applications and Registrations

Patent applications and USPTO patent grants for Kollotzek; Helmut.The latest application filed is for "casting core for forming a cooling channel in a piston".

Company Profile

1.7.7

Kollotzek; Helmut - Mutlangen N/A DE

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Casting core for forming a cooling channel in a piston Grant 8,733,315 - Kollotzek , et al. May 27, 2	2014-05-27
Casting Core For Forming A Cooling Channel In A Piston App 20120325166 - Kollotzek; Helmut ; et al.	2012-12-27
Casting core for forming a cooling channel in a piston produced by casting Grant 8,122,935 - Kollotzek February 28, 2	2012-02-28
Casting core for forming a cooling channel Grant 8,079,403 - Kollotzek December 20, 2	2011-12-20
Cooling Duct For A Piston Of A Combustion Engine App 20110174245 - Kollotzek; Helmut	2011-07-21
Inlay Part For A Piston Of An Internal Combustion Engine And Piston Or Piston Head Provided With The Inlay Part App 20110155091 - Kollotzek; Helmut ; et al.	2011-06-30
Piston for an internal combustion engine and method for its production Grant 7,921,555 - Benz , et al. April 12, 2	2011-04-12
Piston for an internal combustion engine Grant 7,900,551 - Benz , et al. March 8, 2	2011-03-08
Casting Core For Forming A Cooling Channel In A Piston Produced By Casting App 20100163203 - Kollotzek; Helmut	2010-07-01
Casting core for forming a cooling channel App 20090261232 - Kollotzek; Helmut	2009-10-22
Piston for an Internal Combustion Engine and Method for its Production App 20090025550 - Benz; Arnold ; et al.	2009-01-29
Piston for an Internal Combustion Engine App 20090007776 - Benz; Arnold ; et al.	2009-01-08
Light-metal piston for highly stressed internal combustion engines Grant 5,746,169 - Issler , et al. May 5, 1	1998-05-05

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