Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Kemnitz, DE

Erhard Kemnitz, Berlin DE

Patent application numberDescriptionPublished
20080274037Method For The Preparation Of X-Ray Amorphous Or Weakly Crystalline Metal Oxide Fluorides And New Uses Thereof - The present invention is related to a method for preparing an X-ray amorphous or weakly crystalline metal oxide fluoride of a composition represented by the formula M11-06-2008
20100191024Preparation of halogen and hydrogen containing alkenes over metal fluoride catalysts - Halogenated alkenes, especially fluorinated alkenes can be prepared from halogenated and fluorinated alkanes, respectively, by dehydrohalogenation or dehydrofluorination in the presence of a high-surface metal fluoride or oxifluoride. Preferably, trifluoroethylene, pentafluoropropene, tetrafluorobutenes or trifluorobutadiene are prepared. Aluminium fluoride is highly suitable. The metal fluoride or oxifluoride can be applied supported on a carrier.07-29-2010

Patent applications by Erhard Kemnitz, Berlin DE

Peter Kemnitz, Leutenbach DE

Patent application numberDescriptionPublished
20080245335Piston for an internal combustion engine - A piston for an internal combustion engine, comprising a piston head having a piston crown, a circumferential top land, and a circumferential ring belt having ring grooves. At least one ring groove is provided with a ring insert. A circumferential depression is provided in the top land, above the ring belt.10-09-2008
20080264376Piston for an internal combustion engine - A piston for an internal combustion engine has a piston crown, a circumferential top land, and a circumferential ring belt having ring grooves, as well as having a piston skirt that has two skirt walls disposed on the major thrust side and the minor thrust side of the piston, and two box walls, set back with regard to the ring belt, that connect the skirt walls. The box walls have pin bosses with pin bores. The skirt wall disposed on the major thrust side is shorter, in a circumference direction of the piston, than the skirt wall disposed on the minor thrust side.10-30-2008
20090078080Connecting Rod for an Internal Combustion Engine and Method for Its Production - The present invention relates to a connecting rod (03-26-2009
20090165743Piston for an Internal Combustion Engine and Method for Its Production - The present invention relates to a piston (07-02-2009
20100012073PISTON FOR AN INTERNAL COMBUSTION ENGINE - The present invention relates to a piston (01-21-2010
20100050862Piston for an internal combustion engine - A piston for an internal combustion engine has a lower piston part and an upper piston part that are connected with one another by friction welding and form an outer circumferential cooling channel. The upper piston part has a circumferential ring belt provided with ring grooves, the inner wall of which delimits the circumferential outer cooling channel. An outer circumferential friction-weld seam is provided below the ring belt, the width of which seam is less than or equal to the wall thickness between the groove root of the ring grooves and the inner wall of the ring belt.03-04-2010

Patent applications by Peter Kemnitz, Leutenbach DE