Ralph E. Pfister

Follow

Person

Wayne, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Glass container
- Patent number 4,882,210
- Issue date Nov 21, 1989
- The West Company
- Val G. Romberg
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Hypoallergenic jewelry and method of making the same
- Patent number 4,861,658
- Issue date Aug 29, 1989
- Barriergen, Inc.
- Donald L. Griffin
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...