Douglas M. Rayburn

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Denver, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for detecting unauthorized copying of encrypted data
- Patent number 7,729,495
- Issue date Jun 1, 2010
- DPHI Acquisitions, Inc.
- Lane W. Lee
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Revocation method and apparatus for secure content
- Patent number 7,672,903
- Issue date Mar 2, 2010
- DPHI Acquisitions, Inc.
- Lane W. Lee
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Host certification method and system
- Patent number 7,310,821
- Issue date Dec 18, 2007
- DPHI Acquisitions, Inc.
- Lane W. Lee
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Secure access method and system
- Patent number 7,110,982
- Issue date Sep 19, 2006
- DPHI Acquisitions, Inc.
- Timothy R. Feldman
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
System and method for identifying vendors of hidden content
- Publication number 20030188175
- Publication date Oct 2, 2003
- Steven B. Volk
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Host certification method and system
- Publication number 20030185395
- Publication date Oct 2, 2003
- DataPlay, Inc.
- Lane W. Lee
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Unlocking method and system for data on media
- Publication number 20030188183
- Publication date Oct 2, 2003
- Lane W. Lee
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Revocation method and apparatus for secure content
- Publication number 20030149668
- Publication date Aug 7, 2003
- Lane W. Lee
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Mastering process and system for secure content
- Publication number 20030135465
- Publication date Jul 17, 2003
- Lane W. Lee
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Secure access method and system
- Publication number 20030115147
- Publication date Jun 19, 2003
- Timothy R. Feldman
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
System and method for detecting unauthorized copying of encrypted data
- Publication number 20030115146
- Publication date Jun 19, 2003
- DataPlay, Inc.
- Lane W. Lee
- G06 - COMPUTING CALCULATING COUNTING