Helmut Grass

City:

Bad Friedrichshall

Country:

Germany

Published Applications:

Last publication date:

2011-08-25

Top Assignees for applications by Helmut Grass

The entities that hold a legal rights for patent applications filed by inventor Grass Helmut:

SOLVAY FLUOR GMBH 2 Hannover, Germany

Recent patent applications by Grass Helmut

Helmut Grass from Bad Friedrichshall, DE has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2011-08-25

US20110206598A1

Chemistry; metallurgy

Preparation of hydrogen fluoride from fluorspar or calcium fluoride containing waste material

#2 | 2010-06-10

US20100143236A1

Chemistry; metallurgy

Preparation of hydrogen fluoride from calcium fluoride and sulfuric acid

InventorID:

3432056 ⎘