Per-Erik Hellberg

City:

Svenshogen

Country:

Sweden

Published Applications:

Last publication date:

2013-10-17

Top Assignees for applications by Per-Erik Hellberg

The entities that hold a legal rights for patent applications filed by inventor Hellberg Per-Erik:

AKZO NOBEL CHEMICALS INTERNATIONAL B.V. 3 Amersfoort, Netherlands
AKZO NOBEL N.V. 2 Arnhem, Netherlands
Akzo Nobel Chemical International B.V. 1 Amersfoort, Netherlands
AKZO NOBEL N.V. 1 Anhem, Netherlands
Akso Nobel N.V. 1 Arnhem, Netherlands

Recent patent applications by Hellberg Per-Erik

Per-Erik Hellberg from Svenshogen, SE has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2013-10-17

US20130274492A1

Chemistry; metallurgy

Polyester polyamine and polyester polyquaternary ammonium corrosion inhibitors

#2 | 2013-06-20

US20130156638A1

Chemistry; metallurgy

Use of polyester polyamine and polyester polyquaternary ammonium compounds as corrosion inhibitors

#3 | 2012-05-10

US20120114523A1

Chemistry; metallurgy

Polymeric corrosion inhibitors

#4 | 2009-08-20

US20090209666A1

Chemistry; metallurgy

Environmentally friendly water/oil emulsions

#5 | 2007-10-30

US10487972

Nitrogen-containing ortho ester-based surfactant, its preparation and use

#6 | 2006-02-21

US10642882

Ortho ester-based surfactant, its preparation and use

InventorID:

298384 ⎘