Rederiaktiebolaget Nordstjernan

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for recovering heat in waste water
- Patent number 4,352,391
- Issue date Oct 5, 1982
- Rederiaktiebolaget Nordstjernan
- Kurt A. Jonsson
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Wear resistant cast iron
- Patent number 4,342,588
- Issue date Aug 3, 1982
- Rederiaktiebolaget Nordstjernan
- Malte Sporrong
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Compressed air starter
- Patent number 4,324,212
- Issue date Apr 13, 1982
- Rederiaktiebolaget Nordstjernan
- Olof Samuel
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Method and apparatus for sensing and maintaining oscillations in an...
- Patent number 4,257,010
- Issue date Mar 17, 1981
- Rederiaktiebolaget Nordstjernan
- Sven A. Bergman
- G08 - SIGNALLING
Information Patent Grant
Method for separating pollutants from liquid
- Patent number 4,246,102
- Issue date Jan 20, 1981
- Rederiaktiebolaget Nordstjernan
- Ulf R. Hjelmner
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Apparatus for the filtration of a suspension or emulsion
- Patent number 4,197,201
- Issue date Apr 8, 1980
- Rederiaktiebolaget Nordstjernan
- Ulf R. Hjelmner
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method and apparatus for ultrasonic cleaning of component parts
- Patent number 4,194,922
- Issue date Mar 25, 1980
- Rederiaktiebolaget Nordstjernan
- Ake Gransell
- B08 - CLEANING
Information Patent Grant
Method for the filtration of a suspension or emulsion
- Patent number 4,126,546
- Issue date Nov 21, 1978
- Rederiaktiebolaget Nordstjernan
- Ulf R. Hjelmner
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Insulating venetian blind
- Patent number 4,076,068
- Issue date Feb 28, 1978
- Rederiaktiebolaget Nordstjernan
- John Neville Archer
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Nickel and/or cobalt-coated steel with carburized interface
- Patent number 4,013,487
- Issue date Mar 22, 1977
- Rederiaktiebolaget Nordstjernan
- Lars H. Ramqvist
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for improving the anti-corrosion properties of steel coated...
- Patent number 4,013,488
- Issue date Mar 22, 1977
- Rederiaktiebolaget Nordstjernan
- Lars H. Ramqvist
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Rederiaktiebolaget Nordstjernan

Organization

Patents Grantslast 30 patents

Method and apparatus for recovering heat in waste water

Wear resistant cast iron

Compressed air starter

Method and apparatus for sensing and maintaining oscillations in an...

Method for separating pollutants from liquid

Apparatus for the filtration of a suspension or emulsion

Method and apparatus for ultrasonic cleaning of component parts

Method for the filtration of a suspension or emulsion

Insulating venetian blind

Nickel and/or cobalt-coated steel with carburized interface

Process for improving the anti-corrosion properties of steel coated...