05386369 is referenced by 197 patents and cites 8 patents.

An improved software metering system is disclosed. In one embodiment the metering system is in a hardware based "dongle" style meter that plugs into a port of the computer system on which the metered software is running, in software with the metering information being stored on the computer's non-volatile memory or even on a remote location that is attached to the computer system via a network. The disclosed invention utilizes a system of pointers and counter slots in order to prevent the loss of metering information due to non-volatile read/write memory wear out. Also, the invention utilizes a data structure of virtual counters and pointers to be able to keep track of numerous pieces of software with only one meter. The system is also capable of being updated and remotely without compromising meter security with the inclusion of an update code in the data structure. Both methods and apparatus for accomplishing these functions are disclosed.

Title
License metering system for software applications
Application Number
8/89834
Publication Number
5386369
Application Date
July 12, 1993
Publication Date
January 31, 1995
Inventor
Matthew Christiano
Saratoga
CA, US
Agent
Hickman & Beyer
Assignee
Globetrotter Software
CA, US
IPC
G06F 15/20
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