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Michael Liu — 16 Patents

QCQingdao Huatian Hand Truck Co.: 3 patents #2 of 4Top 50%
ATAT&T: 3 patents #5,559 of 18,772Top 30%
SVSbc Knowledge Ventures: 2 patents #23 of 197Top 15%
Tesla: 2 patents #329 of 838Top 40%
Honeywell: 1 patents #13,011 of 16,504Top 80%
Vancouver, CA: #237 of 5,070 inventorsTop 5%
Overall (All Time): #284,196 of 4,157,543Top 7%
16 Patents All Time
Michael Liu has been granted 16 US patents while listed as an inventor at AT&T. The first was granted in 1999 and the most recent in May 2025. Michael Liu ranks #284,196 of 4,157,543 US inventors in our database (top 6.8%). Patent records list Michael Liu in Vancouver, BC, CA.

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12301150 Digital power converter arrangement of electric vehicle — 2025-05-13
11770091 Three-phase digital power inverter system for motor controlling — 2023-09-26
D894290 Folding cart — 2020-08-25
10703240 Reduced-component vehicle seatback Nathan Di Giusto, Matthew Nayna, Alejandro Valle Camillo 2020-07-07
10668836 Vehicle seatback latch with remote handle having integrated flag Nathan Di Giusto, Matthew Nayna, Alejandro Valle Camillo 2020-06-02
10648138 Material spreader controller — 2020-05-12
D871013 Utility dolly board — 2019-12-24
9432292 Overload call control in a VoIP network Raghvendra Savoor, Steve Sposato 2016-08-30 $29,975,000
8768637 Battery-capacity supervisory control device and method thereof — 2014-07-01
8315245 Overload call control in a VoIP network Raghvendra Savoor, Steve Sposato 2012-11-20 $24,650,000
8116997 Battery-capacity supervisory control device and method thereof — 2012-02-14
8036352 Method and system for determining migration of ported telephone numbers between service providers Kevin James Moisan, Wayne Robert Heinmiller, Frederick Armanino 2011-10-11 $18,571,000
7620163 Method and system for forecasting telephony traffic trends using number portability records Kevin James Moisan, Wayne Robert Heinmiller, Frederick Armanino 2009-11-17 $1,905,000
7200031 Proton and heavy ion SEU resistant SRAM Harry Liu 2007-04-03 $8,092,000
6975711 Method and system for forecasting telephony traffic trends using local number portability databases Kevin James Moisan, Wayne Robert Heinmiller, Frederick Armanino 2005-12-13 $3,399,000
5864465 Device for cooling central processing units — 1999-01-26

Nearby-Ranked Inventors

Chung-Lin Fu16
Tyrone T. Chen16
Shivendra Katiyar16
Kevin E. Kalajan16
Henry Y. Mark16
Marco Becker16
Nak Gi Sung16
Kenta Iwai16
Brock Mammoser16