Per-Erik Andersson

Person

Sundsvall, SE

People

Patents Grantslast 30 patents

Information Patent Grant
Method of treating peroxide-containing wastewater
- Patent number 4,663,043
- Issue date May 5, 1987
- Purac Aktiebolag
- Nils L. Molin
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of controlling an anaerobic treatment process
- Patent number 4,659,471
- Issue date Apr 21, 1987
- Purac Aktiebolag
- Nils L. Molin
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Wastewater treatment method
- Patent number 4,632,759
- Issue date Dec 30, 1986
- Purac Aktiebolag
- Per-Erik Andersson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Wastewater treatment method
- Patent number 4,614,587
- Issue date Sep 30, 1986
- Purac Aktiebolag
- Per-Erik Andersson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method for anaerobic wastewater treatment
- Patent number 4,597,872
- Issue date Jul 1, 1986
- Purac Aktiebolag
- Per-Erik Andersson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for digesting and bleaching cellulosic material with reduce...
- Patent number 4,329,199
- Issue date May 11, 1982
- SCA Development Aktiebolag
- Per-Erik Andersson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of cooking cellulose material and preserving the heat and te...
- Patent number 4,274,911
- Issue date Jun 23, 1981
- Obbola Linerboard Aktiebolag
- Erik G. Kroneld
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Per-Erik Andersson

Person

Patents Grantslast 30 patents

Method of treating peroxide-containing wastewater

Method of controlling an anaerobic treatment process

Wastewater treatment method

Wastewater treatment method

Method for anaerobic wastewater treatment

Process for digesting and bleaching cellulosic material with reduce...

Method of cooking cellulose material and preserving the heat and te...