Ragnar Wold

Follow

Person

Porsgrunn, NO

People

Patents Grantslast 30 patents

Information Patent Grant
Method for the removal of unwanted color from hydrochloric acid
- Patent number 6,290,927
- Issue date Sep 18, 2001
- Norsk Hydro A/S
- Ragnar Wold
- C01 - INORGANIC CHEMISTRY