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Patents Grants
last 30 patents
Information
Patent Grant
Immobilized buffered gels and membranes of hydroxy groups containin...
Patent number
5,599,506
Issue date
Feb 4, 1997
Aligena AG
Charles Linder
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Immobilized buffered gels and membranes of hydroxy groups containin...
Patent number
5,597,863
Issue date
Jan 28, 1997
Aligena A.G.
Charles Linder
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Immobilized buffered gels and membranes of hydroxy groups containin...
Patent number
5,430,099
Issue date
Jul 4, 1995
Aligena AG
Charles Linder
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Chargedasymmetric mosaic membrances
Patent number
5,304,307
Issue date
Apr 19, 1994
Aligena A.G.
Charles Linder
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process and device for separating electrically charged macromolecul...
Patent number
5,087,338
Issue date
Feb 11, 1992
Aligena A.G.
Mordechai Perry
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Semipermeable composite membranes
Patent number
5,049,282
Issue date
Sep 17, 1991
Aligena AG
Charles Linder
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Solvent stable membranes
Patent number
5,039,421
Issue date
Aug 13, 1991
Aligena A.G.
Charles Linder
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Solvent-stable semipermeable composite membranes
Patent number
5,032,282
Issue date
Jul 16, 1991
Aligena A.G.
Charles Linder
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Coated membranes
Patent number
5,028,337
Issue date
Jul 2, 1991
Aligena A.G.
Charles Linder
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Composite membranes and processes using them
Patent number
5,024,765
Issue date
Jun 18, 1991
Aligena A.G.
Charles Linder
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Modified polyvinylalcohol containing semipermeable composite membra...
Patent number
4,911,844
Issue date
Mar 27, 1990
Aligena A.G.
Charles Linder
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
High flux RO/UF membranes
Patent number
4,889,636
Issue date
Dec 26, 1989
Aligena, AG
Mordechai Perry
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Composite membranes useful for the separation of organic compounds...
Patent number
4,833,014
Issue date
May 23, 1989
Aligena A.G.
Charles Linder
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Semipermeable encapsulated membranes, process for their manufacture...
Patent number
4,778,596
Issue date
Oct 18, 1988
Aligena A.G.
Charles Linder
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Composite membranes useful for the separation of organic compounds...
Patent number
4,767,645
Issue date
Aug 30, 1988
Aligena A.G.
Charles Linder
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Semipermeable composite membranes, their manufacture, and use
Patent number
4,753,725
Issue date
Jun 28, 1988
Aligena A.G.
Charles Linder
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Semipermeable membranes of modified styrene-based polymers, process...
Patent number
4,720,345
Issue date
Jan 19, 1988
Aligena A.G.
Charles Linder
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Chemically modified semipermeable polysulfone membranes and their u...
Patent number
4,690,766
Issue date
Sep 1, 1987
Aligena A.G.
Charles Linder
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Chemically modified semipermeable membranes and their use in revers...
Patent number
4,690,765
Issue date
Sep 1, 1987
Aligena A.G.
Charles Linder
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Dynamically formed membranes
Patent number
4,659,474
Issue date
Apr 21, 1987
Aligena A.G.
Mordechai Perry
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Porous, semipermeable membranes of chemically modified cellulose ac...
Patent number
4,604,204
Issue date
Aug 5, 1986
Aligena A.G.
Charles Linder
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Reverse osmosis of ultrafiltration modified polyacrylonitrile-conta...
Patent number
4,584,103
Issue date
Apr 22, 1986
Aligena A.G.
Charles Linder
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Modified acrylonitrile polymer containing semipermeable membranes
Patent number
4,477,634
Issue date
Oct 16, 1984
Aligena A.G.
Charles Linder
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Reverse osmosis separation process using porous asymmetric acetyl c...
Patent number
4,247,401
Issue date
Jan 27, 1981
Aligena A.G.
Rene Bloch
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
Trademark
last 30 trademarks