Robert D. Butler — 12 Patents at Apple

Robert D. Butler has been granted 12 US patents while listed as an inventor at Apple. The first was granted in 1990 and the most recent in December 2024. Robert D. Butler ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Robert D. Butler in Middletown, DE, US.

Patents per Year

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12177768	Maintaining access to services via SIM card	Nelson M. Leduc, Lauren E. Tappana, Nicholas J. Circosta, Andrew J. DALEY, Guozhi Huang +2 more	2024-12-24	$240,476,000
11917030	Push notification distribution system	Huan He, Jonathon Sodos, Nicholas J. Circosta, Sean GEIGER, Nelson M. Leduc +7 more	2024-02-27	$182,166,000
11737012	Maintaining access to services via SIM card	Nelson M. Leduc, Lauren E. Tappana, Nicholas J. Circosta, Andrew J. DALEY, Guozhi Huang +2 more	2023-08-22	$159,607,000
11228580	Two-factor device authentication	Gokul P. Thirumalai, Daniel B. Pollack, Ryan W. Baker, David G. Knipp, Sudhakar N. Mambakkam +4 more	2022-01-18	$422,418,000
11012322	Notification of service availability on a device	Nicholas J. Circosta, Daniel B. Pollack, Nelson M. Leduc, Ryan W. Baker	2021-05-18	$223,963,000
10321298	Selection of preferred mechanisms for telephone number validation	Ryan W. Baker, Daniel B. Pollack	2019-06-11	$92,962,000
8929853	Mobile emergency attack and failsafe detection	—	2015-01-06	$123,182,000
8619850	System and method for monitoring broadcast signals	Michael W. Smereski	2013-12-31
5050134	Position determining apparatus	—	1991-09-17	$116,000
5043950	Apparatus and method for distance determination	Stanley Schorum	1991-08-27	$84,000
5009277	Method and apparatus for position determination	Seymour J. Sindeband	1991-04-23	$225,000
4956824	Position determination apparatus	Seymour J. Sindeband	1990-09-11	$128,000

Robert D. Butler — 12 Patents

Patents per Year

Issued Patents All Time

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