Martin E. Hellman

Person

Stanford, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Tiered subscription broadcast system
- Patent number 9,124,375
- Issue date Sep 1, 2015
- Martin E Hellman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Tiered subscription broadcast system
- Patent number 8,627,354
- Issue date Jan 7, 2014
- Martin E Hellman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
FM broadcast system competitive with satellite radio
- Patent number 8,401,462
- Issue date Mar 19, 2013
- Martin Edward Hellman
- G11 - INFORMATION STORAGE
Information Patent Grant
Dropout-resistant media broadcasting system
- Patent number 8,270,901
- Issue date Sep 18, 2012
- Martin E Hellman
- G11 - INFORMATION STORAGE
Information Patent Grant
Security enhanced tiered subscription broadcast system
- Patent number 7,865,917
- Issue date Jan 4, 2011
- Martin E Hellman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
FM broadcast system competitive with satellite radio
- Patent number 7,840,178
- Issue date Nov 23, 2010
- Martin Edward Hellman
- G11 - INFORMATION STORAGE
Information Patent Grant
Authentication using random challenges
- Patent number 5,872,917
- Issue date Feb 16, 1999
- America Online, Inc.
- Martin E. Hellman
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Software distribution system
- Patent number 4,658,093
- Issue date Apr 14, 1987
- Martin E. Hellman
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for use in public-key data encryption system
- Patent number 4,633,036
- Issue date Dec 30, 1986
- Hellman; Martin E.
- Martin E. Hellman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Exponentiation cryptographic apparatus and method
- Patent number 4,424,414
- Issue date Jan 3, 1984
- Board of Trustees of the Leland Stanford Junior University
- Martin E. Hellman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Public key cryptographic apparatus and method
- Patent number 4,218,582
- Issue date Aug 19, 1980
- The Board of Trustees of the Leland Stanford Junior University
- Martin E. Hellman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cryptographic apparatus and method
- Patent number 4,200,770
- Issue date Apr 29, 1980
- Stanford University
- Martin E. Hellman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
FM BROADCAST SYSTEM COMPETITIVE WITH SATELLITE RADIO
- Publication number 20100255772
- Publication date Oct 7, 2010
- Martin Edward Hellman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Tiered subscription broadcast system
- Publication number 20070140318
- Publication date Jun 21, 2007
- Martin E. Hellman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FM broadcast system competitive with satellite radio
- Publication number 20070014536
- Publication date Jan 18, 2007
- Martin Edward Hellman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Security enhanced tiered subscription broadcast system
- Publication number 20060190970
- Publication date Aug 24, 2006
- Martin E. Hellman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Dropout-resistant media broadcasting system
- Publication number 20060136967
- Publication date Jun 22, 2006
- Martin E. Hellman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Martin E. Hellman

Person

Patents Grantslast 30 patents

Tiered subscription broadcast system

Tiered subscription broadcast system

FM broadcast system competitive with satellite radio

Dropout-resistant media broadcasting system

Security enhanced tiered subscription broadcast system

FM broadcast system competitive with satellite radio

Authentication using random challenges

Software distribution system

Method and apparatus for use in public-key data encryption system

Exponentiation cryptographic apparatus and method

Public key cryptographic apparatus and method

Cryptographic apparatus and method

Patents Applicationslast 30 patents

FM BROADCAST SYSTEM COMPETITIVE WITH SATELLITE RADIO

Tiered subscription broadcast system

FM broadcast system competitive with satellite radio

Security enhanced tiered subscription broadcast system

Dropout-resistant media broadcasting system