1
Andrew Stephen Van Luchene, Raymond Jay Mueller: Virtual environment with formalized inter-character relationships. Leviathan Entertainment, April 6, 2010: US07690997 (26 worldwide citation)

Virtual environments in which multiple characters are allowed to form relationships wherein the relationships may provide various benefits as well as obligations are described. Systems and methods for forming, monitoring, and terminating the relationships are also described.


2
Andrew S Van Luchene, Raymond J Mueller: Virtual Environment with Formalized Inter-Character Relationships. Leviathan Entertainment, Gonzales Patent Services, June 12, 2008: US20080139318-A1

Virtual environments in which multiple characters are allowed to form relationships wherein the relationships may provide various benefits as well as obligations are described. Systems and methods for forming, monitoring, and terminating the relationships are also described.