DA

Dennis G. Abraham

IBM: 13 patents #8,581 of 70,183Top 15%
VI Visa: 1 patents #1,299 of 2,009Top 65%
Overall (All Time): #302,138 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6684334 Secure establishment of cryptographic keys using persistent key component — 2004-01-27
6606387 Secure establishment of cryptographic keys — 2003-08-12
5745576 Method and apparatus for initialization of cryptographic terminal Richard Hite 1998-04-28
5301231 User defined function facility Daniela Henningsmeyer, John M. Hudson, Donald B. Johnson, An V. Le, Stephen M. Matyas +1 more 1994-04-05
5237616 Secure computer system having privileged and unprivileged memories Steven G. Aden 1993-08-17
5177791 Secure translation of usage-control values for cryptographic keys Phil C. Yeh, Donald B. Johnson, An Van Le, Stephen M. Matyas, Rotislaw Prymak +2 more 1993-01-05
5148481 Transaction system security method and apparatus Steven G. Aden, Todd W. Arnold, Steven W. Neckyfarow, William S. Rohland 1992-09-15
5103478 Secure management of keys using control vectors with multi-path checking Stephen M. Matyas, Donald B. Johnson, Ramesh K. Karne, An V. Le, Patrick McCormack +2 more 1992-04-07
5048085 Transaction system security method and apparatus Steven G. Aden, Todd W. Arnold, Steven W. Neckyfarow, William S. Rohland 1991-09-10
4993069 Secure key management using control vector translation Stephen M. Matyas, Donald B. Johnson, An V. Le, Rostislaw Prymak, John D. Wilkins +1 more 1991-02-12
4941176 Secure management of keys using control vectors Stephen M. Matyas, Donald B. Johnson, Ramesh K. Karne, An V. Le, Rostislaw Prymak +3 more 1990-07-10
4924514 Personal identification number processing using control vectors Stephen M. Matyas, Donald B. Johnson, Ramesh K. Karne, An V. Le, Rostislaw Prymak +4 more 1990-05-08
4924515 Secure management of keys using extended control vectors Stephen M. Matyas, William Arnold, Donald B. Johnson, Ramesh K. Karne, An V. Le +3 more 1990-05-08
4918728 Data cryptography operations using control vectors Stephen M. Matyas, Donald B. Johnson, Ramesh K. Karne, An V. Le, Rostislaw Prymak +3 more 1990-04-17
4799061 Secure component authentication system Glen P. Double, Steven W. Neckyfarow 1989-01-17
4486784 Image compression systems Thomas W. Gallman 1984-12-04