David Ash — 22 Patents at Empire Technology Development

David Ash has been granted 22 US patents while listed as an inventor at Empire Technology Development. The first was granted in 1998 and the most recent in June 2025. David Ash ranks #189,202 of 4,157,543 US inventors in our database (top 4.6%). Patent records list David Ash in Kirkland, WA, US.

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #	Title	Co-Inventors	Date
12321428	User authentication device, user authentication method, and user authentication computer program	Shmuel Ur, Vlad Grigore Dabija	2025-06-03
12132739	User location authentication using place signature	Vlad Grigore Dabija, Shmuel Ur	2024-10-29
12096221	Determination system, determination method, and computer-readable recording medium	Shmuel Ur, Vlad Grigore Dabija	2024-09-17
11882456	Wireless LAN router, detection method, and detection program	Shmuel Ur, Vlad Grigore Dabija	2024-01-23
11798317	Detection device, detection method, and detection program	Vlad Grigore Dabija, Shmuel Ur	2023-10-24
11743346	Detection device, detection method, and detection program	Shmuel Ur, Vlad Grigore Dabija	2023-08-29
11715334	Image-based authentication of a user's location at a point in time	Shmuel Ur, Vlad Grigore Dabija	2023-08-01
11687888	Management system, management method, and computer-readable recording medium	Shmuel Ur, Vlad Grigore Dabija	2023-06-27
10100485	Retaining wall counterfort and retaining wall system	—	2018-10-16
9892197	Information removal from a network	Patrick John Ennis, Alexander Knight, Vlad Grigore Dabija, Timothy Londergan, Dominic Dan Suciu +1 more	2018-02-13
9817626	Composite display with multiple imaging properties	Shmuel Ur, Vlad Grigore Dabija	2017-11-14
9760926	On demand information network	Dominic Dan Suciu, Patrick John Ennis, Alexander Knight, Vlad Grigore Dabija, Timothy Londergan +1 more	2017-09-12
9734144	Three-dimensional latent semantic analysis	Mihai Dasc{hacek over (a)}lu	2017-08-15
9713186	Line of sight initiated handshake	Shmuel Ur, Vlad Grigore Dabija	2017-07-18
9408243	Line of sight initiated handshake	Shmuel Ur, Vlad Grigore Dabija	2016-08-02
9392049	Automatic content forwarding to communication networks of content posted from a user	Patrick John Ennis, Alexander Knight, Vlad Grigore Dabija, Timothy Londergan, Dominic Dan Suciu +1 more	2016-07-12
9251177	Information removal from a network	Patrick John Ennis, Alexander Knight, Vlad Grigore Dabija, Timothy Londergan, Dominic Dan Suciu +1 more	2016-02-02
8821261	Selecting a wager for an event	Patrick John Ennis, Alexander Knight, Vlad Grigore Dabija, Timothy Londergan, Dominic Dan Suciu +1 more	2014-09-02
D631683	Garden planter	Nicholas Porter	2011-02-01
6113316	Retaining wall system	—	2000-09-05
6060431	Formulation and process for the selective control of Bermuda and other grasses in Bentgrass, Kentucky Bluegrass, Dichondera, Fine Fescue, Tall Fescue, Annual and perennial Ryegrass and St. Augustinegrass turfs and Iceplant	—	2000-05-09
5756425	Fluazifop-butyl formulation and process for the selective control of Bermuda and other grasses in Bentgrass and St. Augustinegrass turf	—	1998-05-26

David Ash — 22 Patents

Issued Patents All Time

Patent Widget