St. Johann
Germany
9
2016-01-07
The entities that hold a legal rights for patent applications filed by inventor Oberhoffer Helmut:
Helmut Oberhoffer from St. Johann, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
Method for producing a corrosion-resistant steel sheet
#2 | 2015-02-19Method for treating a steel band or plate provided with a metal coating with an after-treatment agent, and a steel band or plate provided with a metal coating
#3 | 2015-01-22METHOD FOR PASSIVATION OF STRIP BLACK PLATE
#4 | 2015-01-08Method for producing packaging steel
#5 | 2015-01-08METHOD FOR PASSIVATING TINPLATE
#6 | 2015-01-01METHOD FOR IMPROVING A METAL COATING ON A STEEL STRIP
#7 | 2014-11-27METHOD FOR COATING A STEEL SHEET WITH A METAL LAYER
#8 | 2014-06-12Method for enhancing corrosion resistance of a metallic coating on a steel strip or plate
#9 | 2012-12-27METHOD FOR PRODUCING A CORROSION-RESISTANT, WORKABLE SHEET METAL WITH FULL-SURFACE COATING OF THE JOINED, THERMALLY TREATED STEEL SHEETS
795895 ⎘