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USPTO Patent Rankings Data through Dec 31, 2025
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Guohua Chen — 82 Patents

DUDurect: 11 patents #10 of 96Top 15%
CICorium International: 7 patents #13 of 46Top 30%
ITIntarcia Therapeutics: 7 patents #10 of 56Top 20%
ALAlza: 5 patents #124 of 419Top 30%
COCorium: 5 patents #4 of 25Top 20%
ILIndivior Uk Limited: 3 patents #10 of 33Top 35%
GTGuangdong University Of Technology: 3 patents #43 of 459Top 10%
PCPhoenix Contact: 3 patents #154 of 624Top 25%
HTHong Kong University Of Science And Technology: 3 patents #98 of 964Top 15%
VCVia Alliance Semiconductor Co.: 2 patents #58 of 157Top 40%
Honeywell: 2 patents #5,959 of 16,504Top 40%
CICorning Incorporated: 2 patents #2,089 of 3,890Top 55%
UWUniversity Of Washington: 2 patents #544 of 2,234Top 25%
BEBaotou Research Institute Of Rare Earths: 1 patents #12 of 86Top 15%
MCMaxio Technology (Hangzhou) Co.: 1 patents #8 of 30Top 30%
NCNational Engineering Research Centre Of Ruike Rare Earth Metallurgy And Function Materials Co: 1 patents #12 of 60Top 20%
PCPhoenix Contact Asia-Pacific (Nanjing) Co.: 1 patents #3 of 11Top 30%
Caltech: 1 patents #2,143 of 4,321Top 50%
SCShanghai Zhaoxin Semiconductor Co.: 1 patents #112 of 177Top 65%
GCGreen Cross: 1 patents #289 of 527Top 55%
HCHangzhou H3C Technologies Co.: 1 patents #33 of 144Top 25%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
HEHewlett Packard Enterprise: 1 patents #2,081 of 4,473Top 50%
HLHytera Communications Corporation Limited: 1 patents #30 of 83Top 40%
CACa: 1 patents #669 of 1,424Top 50%
Overall (All Time): #21,533 of 4,157,543Top 1%
82 Patents All Time
Guohua Chen has been granted 82 US patents while listed as an inventor at Durect. The first was granted in 1998 and the most recent in August 2025. Guohua Chen ranks #21,533 of 4,157,543 US inventors in our database (top 0.52%). Patent records list Guohua Chen in Wukehudong, CA, CN.

Issued Patents All Time

Showing 1–25 of 82 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12398441 Method for enriching niobium and titanium in a mineral containing iron, niobium and titanium and a use of a nickel-containing substance Yubao LIU, Erxiong Zhao, Xianheng Zhang, Pengfei Yang, Yuan Li +13 more 2025-08-26
12377044 Method and device for transdermal delivery of parathyroid hormone using a microprojection array Parminder Singh, Danir Bayramov, Robert Wade Worsham 2025-08-05
D1076194 Wax melting lamp — 2025-05-20
D1071315 Floor lamp — 2025-04-15
12275042 Full-automatic high-pressure spray cleaning and rust prevention device and application method thereof Guan Wang, Junxian Li, Sihao Lin, Jieyu Zhu, Lei Guan +1 more 2025-04-15
12172197 Laser cavitation composite ultrasonic cleaning device and cleaning method for connecting rod Guan Wang, Junxian Li, Sihao Lin, Jieyu Zhu, Chong Zhang 2024-12-24
11938589 Dry ice cleaning and recycling device and method for connecting rod Guan Wang, Sihao Lin, Junxian Li, Jieyu Zhu 2024-03-26
11924178 Method and system for secure information distribution based on group shared key Gang Fang, Wei Xu, Yan Cai, Jun Chen, Zhehang Wen +2 more 2024-03-05
D1009519 Two seat recliner reversible sofa cover — 2024-01-02
11752469 Porous ceramic filters and methods for making the same Curtis Robert Fekety, Jianguo Wang, Huiqing Wu 2023-09-12 $6,762,000
11565097 Microarray for delivery of therapeutic agent and methods of use Danir Bayramov, Zhongli Ding, Esi Ghartey-Tagoe, Parminder Singh, Doug Bourne 2023-01-31
D975343 Floor lamp — 2023-01-10
11419816 Method and device for transdermal delivery of parathyroid hormone using a microprojection array Parminder Singh, Danir Bayramov, Robert Wade Worsham 2022-08-23
D959726 Night light — 2022-08-02
11389769 Porous ceramic filters and methods for making the same Curtis Robert Fekety, Jianguo Wang, Huiqing Wu 2022-07-19 $17,337,000
D958440 Plant lamp — 2022-07-19
11379243 Microprocessor with multistep-ahead branch predictor Fangong Gong, Mengchen Yang 2022-07-05
11355868 Bolt terminal Tianhua Zhang, Michael Reineke 2022-06-07
D946555 Wireless earphone — 2022-03-22
11179326 Short duration depot formulations David Priebe 2021-11-23 $3,541,000
11110093 Sustained release small molecule drug formulation Andrew Luk, Gunjan Junnarkar 2021-09-07
D925500 Wireless earphone — 2021-07-20
11052231 Microarray for delivery of therapeutic agent and methods of use Zhongli Ding, Ashutosh Shastry, Robert Wade Worsham, Parminder Singh 2021-07-06
D920293 Wireless earphone — 2021-05-25
D914652 Wireless earphone — 2021-03-30

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