Inventor
LAO GUILLERMO
US46 patents
⚠️ This page may combine multiple inventors who share the name “LAO GUILLERMO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CONTENTGUARD HOLDINGS INC
24 patentsUS7028009B2Apr 11, 2006
Method and apparatus for distributing enforceable property rights
CONTENTGUARD HOLDINGS INC103 citations98
US6976009B2Dec 13, 2005
Method and apparatus for assigning consequential rights to documents and documents having such rights
CONTENTGUARD HOLDINGS INC101 citations98
US6895503B2May 17, 2005
Method and apparatus for hierarchical assignment of rights to documents and documents having such rights
CONTENTGUARD HOLDINGS INC90 citations98
US6876984B2Apr 5, 2005
Method and apparatus for establishing usage rights for digital content to be created in the future
CONTENTGUARD HOLDINGS INC84 citations98
US7222104B2May 22, 2007
Method and apparatus for transferring usage rights and digital work having transferrable usage rights
CONTENTGUARD HOLDINGS INC58 citations96
US6954738B2Oct 11, 2005
Method and apparatus for distributing enforceable property rights
CONTENTGUARD HOLDINGS INC66 citations96
US6824051B2Nov 30, 2004
Protected content distribution system
CONTENTGUARD HOLDINGS INC161 citations96
US7068787B1Jun 27, 2006
System and method for protection of digital works
CONTENTGUARD HOLDINGS INC100 citations95
US7085741B2Aug 1, 2006
Method and apparatus for managing digital content usage rights
CONTENTGUARD HOLDINGS INC141 citations94
US7290699B2Nov 6, 2007
Protected content distribution system
CONTENTGUARD HOLDINGS INC41 citations93
US7359884B2Apr 15, 2008
Method and apparatus for processing usage rights expressions
CONTENTGUARD HOLDINGS INC16 citations92
US7299171B2Nov 20, 2007
Method and system for processing grammar-based legality expressions
CONTENTGUARD HOLDINGS INC25 citations92
US7162633B2Jan 9, 2007
Method and apparatus for hierarchical assignment of rights to documents and documents having such rights
CONTENTGUARD HOLDINGS INC25 citations92
US7152046B2Dec 19, 2006
Method and apparatus for tracking status of resource in a system for managing use of the resources
CONTENTGUARD HOLDINGS INC29 citations92
US6973445B2Dec 6, 2005
Demarcated digital content and method for creating and processing demarcated digital works
CONTENTGUARD HOLDINGS INC47 citations92
US6963858B2Nov 8, 2005
Method and apparatus for assigning consequential rights to documents and documents having such rights
CONTENTGUARD HOLDINGS INC33 citations92
US6754642B2Jun 22, 2004
Method and apparatus for dynamically assigning usage rights to digital works
CONTENTGUARD HOLDINGS INC45 citations92
US6968996B2Nov 29, 2005
Protected content distribution system
CONTENTGUARD HOLDINGS INC21 citations90
US7343324B2Mar 11, 2008
Method, system, and computer readable medium for automatically publishing content
CONTENTGUARD HOLDINGS INC36 citations89
US7774280B2Aug 10, 2010
System and method for managing transfer of rights using shared state variables
CONTENTGUARD HOLDINGS INC13 citations84
US7725401B2May 25, 2010
Method and apparatus for establishing usage rights for digital content to be created in the future
CONTENTGUARD HOLDINGS INC11 citations84
US7853531B2Dec 14, 2010
Method and apparatus for supporting multiple trust zones in a digital rights management system
CONTENTGUARD HOLDINGS INC17 citations83
US7386513B2Jun 10, 2008
Networked services licensing system and method
CONTENTGUARD HOLDINGS INC14 citations83
US10540484B2Jan 21, 2020
Networked services licensing system and method
CONTENTGUARD HOLDINGS INC1 citations60
XEROX CORP
7 patentsUS5541439AJul 30, 1996
Layout for a high voltage darlington pair
XEROX CORP28 citations92
US5270660ADec 14, 1993
Electrostatic voltmeter employing high voltage integrated circuit devices
XEROX CORP30 citations92
US5657431AAug 12, 1997
Image rotation from virtual memory in a digital printing system
XEROX CORP20 citations89
US5424226AJun 13, 1995
Method of fabricating NMOS and PMOS FET's in a CMOS process
XEROX CORP15 citations74
US5357393AOct 18, 1994
Integrated ultra low leakage high voltage protection circuit
XEROX CORP12 citations72
US5304836AApr 19, 1994
High voltage field effect transistor having a small ratio of channel width to channel length and method of manufacture
XEROX CORP11 citations70
US5329155AJul 12, 1994
Thin film integrated circuit resistor
XEROX CORP19 citations68
LAO GUILLERMO
5 patentsUS8275716B2Sep 25, 2012
Method and system for subscription digital rights management
LAO GUILLERMO9 citations83
US8892473B2Nov 18, 2014
Method and system for subscription digital rights management
LAO GUILLERMO2 citations62
US8468098B2Jun 18, 2013
Method and system for subscription digital rights management
LAO GUILLERMO2 citations62
US8271350B2Sep 18, 2012
Method and system for automatically publishing content
LAO GUILLERMO4 citations59
US8566176B2Oct 22, 2013
Method and system for automatically publishing content
LAO GUILLERMO0 citations47
WANG XIN
3 patentsUS8275709B2Sep 25, 2012
Digital rights management of content when content is a future live event
WANG XIN21 citations89
US8869293B2Oct 21, 2014
Method and apparatus for hierarchical assignment of rights to documents and documents having such rights
WANG XIN5 citations84
US8244579B2Aug 14, 2012
Method and apparatus for distributing enforceable property rights
WANG XIN3 citations62