Ahlstrom Paper Group Oy

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Patents Grantslast 30 patents

Information Patent Grant
Foam process for producing multi-layered webs
- Patent number 6,238,518
- Issue date May 29, 2001
- Ahlstrom Paper Group Oy
- Kay Rokman
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Displacement pump and method of use thereof
- Patent number 6,174,152
- Issue date Jan 16, 2001
- Ahlstrom Paper Group Oy
- Kay Rokman
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Effective utilization of sap in producing non-woven webs using the...
- Patent number 6,019,871
- Issue date Feb 1, 2000
- Ahlstrom Paper Group Oy
- Kay Rokman
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Introduction of fiber-free foam into, or near, a headbox during foa...
- Patent number 5,904,809
- Issue date May 18, 1999
- Ahlstrom Paper Group Oy
- Kay Rokman
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

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