Robert John Frank — 5 Patents at AT&T

Robert John Frank has been granted 5 US patents while listed as an inventor at AT&T. The first was granted in 2001 and the most recent in April 2005. Robert John Frank ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Robert John Frank in Silver Spring, MD, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6876744	Methods and apparatus for enhanced CMEA including a CMEA iteration preceded and followed by transformations and employing an involuntary lookup	Mark H. Etzel, Daniel Nelson Heer, Robert Joseph McNelis, Semyon B. Mizikovsky, Robert J. Rance +1 more	2005-04-05	$19,664,000
6418224	Methods and apparatus for self-inverting multiple-iteration CMEA crypto-processing for improved security for wireless telephone messages	Mark H. Etzel, Daniel Nelson Heer, Robert Joseph McNelis, Semyon B. Mizikovsky, Robert J. Rance +1 more	2002-07-09	$10,500,000
6377687	Methods and apparatus for enhanced CMEA employing enhanced transformations	Mark H. Etzel, Daniel Nelson Heer, Robert Joseph McNelis, Semyon B. Mizikovsky, Robert J. Rance +1 more	2002-04-23	$10,373,000
6266411	Method and apparatus for multiple-iteration CMEA encryption and decryption for improved security for wireless telephone messages	Mark H. Etzel, Daniel Nelson Heer, Robert Joseph McNelis, Semyon B. Mizikovsky, Robert J. Rance +1 more	2001-07-24	$18,571,000
6233337	Methods and apparatus for enhanced security expansion of a secret key into a lookup table for improved security for wireless telephone messages	Mark H. Etzel, Daniel Nelson Heer, Robert Joseph McNelis, Semyon B. Mizikovsky, Robert J. Rance +1 more	2001-05-15	$37,602,000

Robert John Frank — 5 Patents

Issued Patents All Time

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