Janet A. Allen

Follow

Person

Boston, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for modulating the area of pixels for tone rep...
- Patent number 5,369,497
- Issue date Nov 29, 1994
- Janet A. Allen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Area modulation printing apparatus
- Patent number 5,221,971
- Issue date Jun 22, 1993
- Polaroid Corporation
- Janet A. Allen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Video identification card system
- Patent number 5,075,769
- Issue date Dec 24, 1991
- Polaroid Corporation
- Janet A. Allen
- G07 - CHECKING-DEVICES