SIGMA ENGINEERING AB

City:

Karlstad

Country:

Sweden

Published Applications:

Last publication date:

2017-01-26

Patent Grants:

Last grant date:

2018-03-20

Top Inventors for applications by SIGMA ENGINEERING AB

These are the the leading inventors for applications assigned to SIGMA ENGINEERING AB:

Harald Ottertun 1 Hindas, Sweden
Mats ANDERSSON 1 Karlstad, Sweden

Recent patent applications by SIGMA ENGINEERING AB

SIGMA ENGINEERING AB based in Karlstad, SE has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:

#1 | 2017-01-26 ✅ Patent 9,920,434 granted on 2018-03-20

US20170022616A1

Chemistry; metallurgy

Oxidation of copper in a copper etching solution by the use of oxygen and/or air as an oxidizing agent

#2 | 2011-01-06 ✅ Patent 8,236,189 granted on 2012-08-07

US20110000884A1

Chemistry; metallurgy

Method for etching copper and recovery of the spent etching solution

Also check out SIGMA ENGINEERING AB's (Karlstad, Sweden) applicant profile with 1 patent applications submitted.

AssigneeID:

118381 ⎘