Ole Johan Richter

Follow

Person

Karlstad, SW

People

Patents Grantslast 30 patents

Information Patent Grant
Selective impregnation of heterogenous fiber material before digestion
- Patent number 4,092,212
- Issue date May 30, 1978
- Kamyr Aktiebolag
- Johan C. F. C. Richter
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for counter-current treatment of cellulose fiber material
- Patent number 4,056,429
- Issue date Nov 1, 1977
- Kamyr Aktiebolag
- Johan C. F. C. Richter
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE