Alfred K. Fritzsche

Follow

Person

Manchester, MO, US

People

Patents Grantslast 30 patents

Information Patent Grant
Asymmetric gas separation membranes having graded density skins
- Patent number 4,880,441
- Issue date Nov 14, 1989
- Permea, Inc.
- Robert E. Kesting
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for forming asymmetric gas separation membranes having grad...
- Patent number 4,871,494
- Issue date Oct 3, 1989
- Permea, Inc.
- Robert E. Kesting
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...