Robert F. Pfeifer

Follow

Person

Scottsdale, AZ, US

People

Patents Grantslast 30 patents

Information Patent Grant
Hierarchical key management system
- Patent number 4,888,801
- Issue date Dec 19, 1989
- Motorola, Inc.
- Robert I. Foster
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Key management for encryption/decryption systems
- Patent number 4,281,216
- Issue date Jul 28, 1981
- Motorola Inc.
- Gerald J. Hogg
- H04 - ELECTRIC COMMUNICATION TECHNIQUE