US Patent No: 5,343,526

Number of patents in Portfolio can not be more than 2000

Method for establishing licensor changeable limits on software usage

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ATTORNEY / AGENT: (SPONSORED)
 

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Abstract

A system and method for establishing licensor changeable limits on shared software usage without the licensor having access to the system on which the shared software is running. An encrypted numerical limit value is embedded in the licensed software (program); when the program is executed ("accessed"), as a first step, the program decrypts the limit value and compares it to the number of users currently accessing the shared program. If the number of users is less than the limit, then access is allowed. If the number of users is equal to (or greater than) the limit, then access is denied.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
AMERICAN TELEPHONE AND TELEGRAPH COMPANYMURRAY HILL, NJ3138
AT&T BELL LABORATORIESMURRAY HILL, NJ3372

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lassers, Harold A Elmhurst, IL 4 65

Cited Art

Patent Info (Count) # Cites Year
 
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Patent Citation Ranking

Forward Cites

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