U.S. patents available from 1976 to present.
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Method and apparatus for electronic licensing

Patent 5553143 Issued on September 3, 1996. Estimated Expiration Date: Icon_subject February 4, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

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Method for establishing licensor changeable limits on software usage
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Inventor: Moore

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Inventors

Assignee

Application

No. 192166 filed on 02/04/1994

US Classes:

705/59, Licensing705/56, Specific computer ID (e.g., serial number, configuration, etc.)705/80, ELECTRONIC NEGOTIATION713/155Central trusted authority provides computer authentication

Examiners

Primary: Cain, David

Attorney, Agent or Firm

International Class

H04K 001/00

Abstract

The present invention allows for the electronic management and enforcement of software licenses. The present invention can be used in a network or non-network environment to facilitate product licensing and upgrades. Further, the present invention accommodates the use of compact disc read-only memory (CD ROM) product distribution. Further, the present invention can retain useful, after-market information. The present invention provides the ability to implement a license policy. Further, the license policy can be implemented or modified without requiring a new version of the associated product. The present invention provides the ability to create electronic licenses. Further, the present invention provides the ability to extract and transfer licenses from an inventory of licenses to a final distribution media. Licenses can be transferred to a reseller in batches. A reseller can extract unused licenses from these batches to generate licenses. An optional companion license can be generated. Installed licenses can be managed and enforced by the present invention. Further, Upgrades (e.g., version and connections) can be accomplished independent of the product. License documents can be used to retain information related to a license. Portions of a license document can be encrypted using a private key and message digests. The encrypted result can be stored in the license document, and examined to validate a license. License documents can be created in batches. One or more licenses in a batch of licenses can be enabled to create a software license.

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