David Thorn — 18 Patents at Evolving Systems

David Thorn has been granted 18 US patents while listed as an inventor at Evolving Systems. The first was granted in 1988 and the most recent in December 2025. David Thorn ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list David Thorn in Gaithersburg, MD, US.

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12491450	Modular water purification system	—	2025-12-09
12469093	Secure service recipient online portal	Alexander J L Theoharis, Timothy A. Dinehart, Diane I. Conrad, Daniel Beier, Brandon H. Fuller +4 more	2025-11-11
12282205	Glasses for the hearing impaired	—	2025-04-22
12254521	Secure service recipient online portal	Alexander J L Theoharis, Timothy D. Dinehart, Diane I. Conrad, Daniel Beier, Brandon H. Fuller +4 more	2025-03-18
11908027	Digital delivery of legal process	Alexander J L Theoharis, Timothy D. Dinehart, Diane I. Conrad, Daniel Beier, Brandon H. Fuller +4 more	2024-02-20
11166163	Secure re-use of SIM security parameters	—	2021-11-02	$807,000
9161296	Controlled access to a wireless network	Stephen Parsons, Stuart Cochran	2015-10-13	$694,000
8929863	Methods and systems for temporarily permitting a wireless device to access a wireless network	Peter John	2015-01-06	$823,000
8559930	Occasional access to a wireless network	Stephen Parsons, Stuart Cochran	2013-10-15	$941,000
8509767	Controlled access to a wireless network	Stephen Parsons, Stuart Cochran	2013-08-13	$843,000
8463258	Extended wireless device activation	Stephen Parsons, Stuart Cochran	2013-06-11	$706,000
8145212	Wireless device activation	Alejandro Lopresti, Stephen Parsons	2012-03-27	$501,000
7411703	Facsimile network	B. Michael Adler, Tommy Wayne Quaid, Jr., Bruce Willard Graham, John Claybron Poss	2008-08-12
6552826	Facsimile network	B. Michael Adler, Tommy Wayne Quaid, Jr., Bruce Willard Graham, John Claybron Poss	2003-04-22
6256115	Facsimile network	B. Michael Adler, Tommy Wayne Quaid, Jr., Bruce Willard Graham, John Claybron Poss	2001-07-03
5086461	Apparatus and method for providing existing 1ESS and 1AESS telephone switching equipment with the capability of using the SS7 protocol	Rajendra Patel, Gordon Sohl	1992-02-04
4853955	Apparatus and method for providing existing telephone switching equipment with the capability of using the SS7 protocol	Rajendra Patel, Gerald K. Coley, Ashok Trivedi, Girish Patel	1989-08-01
4782519	Method and apparatus for enhancing the operating capabilities of a telephone switching system	Rajendra Patel, Kenneth A. Lauffenburger, Donald D. Binford, Jr., Zye K. Cheng, Yeong-Haw Yang +2 more	1988-11-01

David Thorn — 18 Patents

Issued Patents All Time

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