John Wang — 17 Patents at L2 Drive

John Wang has been granted 17 US patents while listed as an inventor at L2 Drive. The first was granted in 1988 and the most recent in January 2025. John Wang ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list John Wang in Eden Prairie, MN, US.

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12200419	Acoustic tube and hearing device system including same	Yoshi Kasahara, Gregory J. Haubrich	2025-01-14
12051453	Active spacing control for contactless tape recording	Karim Kaddeche, Peter R. Goglia	2024-07-30
11222663	Active spacing control for contactless tape recording	Karim Kaddeche, Peter R. Goglia	2022-01-11
7407720	Interlayer design for magnetic media	Erol Girt, Alex Rou	2008-08-05	$16,322,000
D507206	Motor driven vehicle for transporting a standing person	—	2005-07-12
6907949	Battery powered motor vehicle and method of use	—	2005-06-21
6855439	Highly oriented longitudinal magnetic media on direct textured glass substrates	Shanghsien Rou, Romulo Ata, Kueir-Weei Chour	2005-02-15	$19,126,000
5362034	Hydraulic height adjusting device	—	1994-11-08
5228156	Fluid operated device	—	1993-07-20
5161629	Helical pipe incorporated in a hydraulically actuated scale	—	1992-11-10
5115723	Height adjusting device	—	1992-05-26
5092567	Pressure actuated assembly	—	1992-03-03
5028037	Automatic lifting apparatus	—	1991-07-02
5014966	Adjustable telescopic apparatus	—	1991-05-14
4833973	Pressure actuated assembly extendable by fluid pressure and retractable by spring action	—	1989-05-30
4832318	Lifting telescoping tube	—	1989-05-23
4784362	Hydraulic automatically ascending apparatus with a volume-variable oil tank	—	1988-11-15

John Wang — 17 Patents

Issued Patents All Time

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