Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
QZ

Qintao Zhang — 78 Patents

IBM: 37 patents #2,608 of 70,183Top 4%
Applied Materials: 32 patents #348 of 7,310Top 5%
Broadcom: 3 patents #3,179 of 9,346Top 35%
APAvago Technologies General Ip (Singapore) Pte.: 2 patents #524 of 2,004Top 30%
Samsung: 2 patents #38,282 of 75,807Top 55%
VAVarian Semiconductor Equipment Associates: 1 patents #304 of 513Top 60%
Globalfoundries: 1 patents #2,221 of 4,424Top 55%
Armonk, NY: #4 of 167 inventorsTop 3%
New York: #896 of 115,490 inventorsTop 1%
Overall (All Time): #23,712 of 4,157,543Top 1%
78 Patents All Time
Qintao Zhang has been granted 78 US patents while listed as an inventor at IBM. The first was granted in 2015 and the most recent in September 2025. Qintao Zhang ranks #23,712 of 4,157,543 US inventors in our database (top 0.57%). Patent records list Qintao Zhang in Armonk, NY, US.

Patents per Year

Patents granted per year, 2015 to 2025Bar chart with a peak of 14 patents in 2019.peak 142015: 1 patents20152016: 2 patents2017: 11 patents20172018: 9 patents2019: 14 patents20192020: 5 patents2021: 5 patents20212022: 9 patents2023: 8 patents20232024: 9 patents2025: 5 patents2025

Issued Patents All Time

Showing 1–25 of 78 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12424482 Selective implantation into STI of ETSOI device Wei Zou 2025-09-23
12412789 Endpoint optimization for semiconductor processes Avishay Vaxman, Jeffrey P. Koch, David P. Surdock, Wayne R. Swart, David J. Lee +3 more 2025-09-09
12369312 Vertical FinFet formation using directional deposition Sipeng Gu 2025-07-22
12347687 Etch rate modulation of FinFET through high-temperature ion implantation Rajesh Prasad, Jun Lu 2025-07-01
12308237 Ion implantation to increase MOSFET threshold voltage Samphy Hong, Wei Zou 2025-05-20
12183794 MOSFET gate shielding using an angled implant Samphy Hong 2024-12-31 $49,330,000
12087585 Low-temperature implant for buried layer formation Samphy Hong, Wei Zou, Judy Campbell Soukup 2024-09-10 $81,152,000
12046473 Backside wafer dopant activation Samphy Hong, Vittoriano Ruscio, Wei Zou, David J. Lee 2024-07-23 $84,339,000
11955533 Ion implantation to reduce nanosheet gate length variation Sipeng Gu, Baonian Guo, Wei Zou, Kyuha Shim 2024-04-09 $47,694,000
11948799 Minority carrier lifetime reduction for SiC IGBT devices Wei Zou 2024-04-02 $42,223,000
11942324 Method for BEOL metal to dielectric adhesion Jun Lu, Ting Cai, Ma Ning, Weiye He, Jian Kang 2024-03-26 $55,219,000
11881405 Methods for forming N-type buried layer in a substrate by performing non-doping implant through oxide layer formed over the substrate Wei Zou 2024-01-23 $48,508,000
11882695 Vertical field effect transistor including integrated antifuse Kangguo Cheng, Juntao Li, Geng Wang 2024-01-23
11875995 Techniques and apparatus for anisotropic stress compensation in substrates using ion implantation Scott Falk, Jun Lu 2024-01-16 $94,012,000
11804537 Channeled implants for SiC MOSFET fabrication Samphy Hong, Wei Zou, Hans-Joachim L. Gossmann 2023-10-31 $79,893,000
11798982 Self-aligned trench MOSFET Samphy Hong, Jason Appell, David J. Lee 2023-10-24 $34,065,000
11728383 Localized stressor formation by ion implantation Sipeng Gu, Wei Zou, Kyu-Ha Shim 2023-08-15 $42,730,000
11721743 Implantation enabled precisely controlled source and drain etch depth Wei Zou, Samphy Hong 2023-08-08 $46,911,000
11699570 System and method for hi-precision ion implantation Supakit Charnvanichborikarn, Wei Zou, Hans-Joachim L. Gossmann, Aseem K. Srivastava, William R. Bogiages, Jr. +1 more 2023-07-11 $39,838,000
11694897 Backside wafer dopant activation Wei Zou 2023-07-04
11695060 Ion implantation to form trench-bottom oxide of MOSFET Samphy Hong, Wei Zou, Lei Zhong, David J. Lee, Felix Levitov 2023-07-04
11610972 Technique for reducing gate induced drain leakage in DRAM cells Sipeng Gu 2023-03-21 $36,722,000
11538925 Ion implantation to form step-oxide trench MOSFET Sipeng Gu, Yi Zheng, John Hautala 2022-12-27 $54,393,000
11527412 Method for increasing photoresist etch selectivity to enable high energy hot implant in SiC devices Samphy Hong, David J. Lee, Felix Levitov, Lei Zhong, Wei Zou 2022-12-13 $35,358,000
11527637 Ion implantation to control formation of MOSFET trench-bottom oxide Samphy Hong 2022-12-13 $35,358,000