Patents by Inventor xx. xx 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).
Multi frequency stacked patch antenna... View More 
answered on Sep 15, 2021
It appears that your dad assigned his rights to Tyco. https://assignment.uspto.gov/patent/index.html#/patent/search/resultAbstract?id=6639558&type=patNum
Often this happens as someone is working for a company and they assign their rights over to their employer. Perhaps Tyco paid... View More
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