Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert D. Silfvast — 24 Patents

Apple: 17 patents #1,950 of 18,612Top 15%
EUEuphonix: 3 patents #2 of 17Top 15%
ATAvid Technology: 2 patents #91 of 355Top 30%
Belmont, CA: #123 of 1,494 inventorsTop 9%
California: #23,266 of 386,348 inventorsTop 7%
Overall (All Time): #168,038 of 4,157,543Top 5%
24 Patents All Time
Robert D. Silfvast has been granted 24 US patents while listed as an inventor at Apple. The first was granted in 1995 and the most recent in October 2025. Robert D. Silfvast ranks #168,038 of 4,157,543 US inventors in our database (top 4.0%). Patent records list Robert D. Silfvast in Belmont, CA, US.

Patents per Year

Patents granted per year, 1995 to 2025Bar chart with a peak of 5 patents in 2022.peak 51995: 1 patents19951996: 1 patents1997: 1 patents19972005: 1 patents2015: 1 patents20152016: 1 patents2019: 1 patents20192020: 3 patents2021: 1 patents20212022: 5 patents2023: 3 patents20232024: 2 patents2025: 3 patents2025

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12439191 Display system having an audio output device Neal D. Evans, James W. Vandyke, Andrew M. Hulva, Christopher T. Eubank 2025-10-07
12263416 Action toy featuring object collisions inside a vacuum chamber 2025-04-01
12259560 Handheld controllers with charging and storage systems Paul X. Wang, Ian P. Colahan, Christopher T. Eubank, Christopher K Ewy, Patrick T. Ryan +1 more 2025-03-25
12119021 Situational awareness for head mounted devices Neal D. Evans 2024-10-15 $249,534,000
12080278 Bone conduction transducers for privacy Neal D. Evans, Nikolas T. Vitt, Jonathan D. Sheaffer 2024-09-03 $189,878,000
11840177 System for holding devices Sawyer I. Cohen, Jack Wanderman, Romain A. Teil, Mikael P. Sedlacek, Jorge C. Fialho +2 more 2023-12-12 $221,665,000
11805347 Display system having an audio output device Neal D. Evans, James W. Vandyke, Andrew M. Hulva, Christopher T. Eubank 2023-10-31 $267,879,000
11721355 Audio bandwidth reduction Christopher T. Eubank, Lance Jabr, Matthew S. Connolly, Sean A. Ramprashad, Carlos Avendano +1 more 2023-08-08 $174,735,000
11501760 Bone conduction transducers for privacy Neal D. Evans, Nikolas T. Vitt, Jonathan D. Sheaffer 2022-11-15 $272,708,000
11366325 Display devices with multimodal audio James W. Vandyke, Jeremy C. Franklin, Neal D. Evans, Christopher T. Eubank 2022-06-21 $223,110,000
11295754 Audio bandwidth reduction Christopher T. Eubank, Lance Jabr, Matthew S. Connolly, Sean A. Ramprashad, Carlos Avendano +1 more 2022-04-05 $244,930,000
11259192 Ultra-low latency audio over bluetooth Sriram Hariharan, Alon Paycher, Ran Irony, Sreeraman Anantharaman 2022-02-22 $187,065,000
11234078 Optical audio transmission from source device to wireless earphones Tushar Gupta, Jahan Minoo, Nicholas Charles Soldner, Daniel Javaheri-Zadeh 2022-01-25 $316,687,000
11176925 Bone conduction transducers for privacy Neal D. Evans, Nikolas T. Vitt, Jonathan D. Sheaffer 2021-11-16 $241,630,000
10848846 Display system having an audio output device Neal D. Evans, James W. Vandyke, Andrew M. Hulva, Christopher T. Eubank 2020-11-24 $169,360,000
10816812 Display devices with multimodal audio James W. Vandyke, Jeremy C. Franklin, Neal D. Evans, Christopher T. Eubank 2020-10-27 $347,521,000
10703297 System for holding devices in a passenger vehicle Sawyer I. Cohen, Jack Wanderman, Romain A. Teil, Mikael P. Sedlacek, Jorge C. Fialho +2 more 2020-07-07 $144,181,000
10243613 Talker feedback system Martin E. Johnson, Tom-Davy W. Saux, Justin D. Crosby 2019-03-26 $123,032,000
9514723 Distributed, self-scaling, network-based architecture for sound reinforcement, mixing, and monitoring Raymond Tantzen 2016-12-06 $2,448,000
9031262 Distributed, self-scaling, network-based architecture for sound reinforcement, mixing, and monitoring Raymond Tantzen 2015-05-12 $6,074,000
6839675 Real-time monitoring system for codec-effect sampling during digital processing of a sound source Philip Campbell, Scott W. Silfvast, Andor Izsak, Paul deBenedictis, Steven H. Milne 2005-01-04
5677959 Audio signal source balancing adapters 1997-10-14
5524060 Visuasl dynamics management for audio instrument Scott W. Silfvast, Edward Fay, Philip R. Wiser 1996-06-04 $897,000
5402501 Automated audio mixer Scott W. Silfvajt, Andrew E. Kalmau, Russell Kadota, Adam W. Reif 1995-03-28