Patents by Inventor Gerald J. Garwood

Gerald J. Garwood has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4319090
    Abstract: The availability of service in a telephone exchange is evaluated by a technique which includes monitoring for each call type over a period of time the level of usage of the items of equipment required for that call type and evaluating using the monitored data the probability of each particular item not being able to provide a service when required. The probability figures of the call types can be combined to give an index figure indicative of the availability of service of the exchange.
    Type: Grant
    Filed: May 1, 1980
    Date of Patent: March 9, 1982
    Assignee: Post Office
    Inventors: Gerald J. Garwood, Evelyn M. Swenson