John D. Wiedemer

Person

Houston, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Resettable single play tape cassette
- Patent number 5,781,384
- Issue date Jul 14, 1998
- John David Wiedemer
- G11 - INFORMATION STORAGE
Information Patent Grant
Auditing system for single play tape cassette
- Patent number 5,473,688
- Issue date Dec 5, 1995
- John D. Wiedemer
- G11 - INFORMATION STORAGE
Information Patent Grant
Billing system for computing software
- Patent number 5,155,680
- Issue date Oct 13, 1992
- Signal Security Technologies
- John D. Wiedemer
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Billing system for computer software
- Patent number 5,047,928
- Issue date Sep 10, 1991
- John D. Wiedemer
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Automated EPROM and EEPROM reading, erasing, and writing system
- Patent number 5,023,834
- Issue date Jun 11, 1991
- John D. Wiedemer
- G11 - INFORMATION STORAGE
Information Patent Grant
High security pay television system
- Patent number 4,908,834
- Issue date Mar 13, 1990
- John D. Wiedemer
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
High security pay television system
- Patent number 4,907,273
- Issue date Mar 6, 1990
- John D. Wiedemer
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
High security videotext and videogame system
- Patent number 4,905,280
- Issue date Feb 27, 1990
- John D. Wiedemer
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
High security pay television system
- Patent number 4,807,286
- Issue date Feb 21, 1989
- John D. Wiedemer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Billing system for computer software
- Patent number 4,796,181
- Issue date Jan 3, 1989
- John D. Wiedemer
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
High security pay television system
- Patent number 4,696,034
- Issue date Sep 22, 1987
- Signal Security Technologies
- John D. Wiedemer
- G06 - COMPUTING CALCULATING COUNTING

John D. Wiedemer

Person

Patents Grantslast 30 patents

Resettable single play tape cassette

Auditing system for single play tape cassette

Billing system for computing software

Billing system for computer software

Automated EPROM and EEPROM reading, erasing, and writing system

High security pay television system

High security pay television system

High security videotext and videogame system

High security pay television system

Billing system for computer software

High security pay television system