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

Limin Chen — 15 Patents

SPSpectronics: 7 patents #4 of 19Top 25%
AOApplied Optoelectronics: 3 patents #30 of 90Top 35%
UNUnknown: 2 patents #12,644 of 83,584Top 20%
WGWidia Gmbh: 2 patents #20 of 51Top 40%
Schlumberger Technology: 2 patents #2,630 of 7,293Top 40%
Cypress, TX: #114 of 1,064 inventorsTop 15%
Texas: #9,849 of 125,132 inventorsTop 8%
Overall (All Time): #307,048 of 4,157,543Top 8%
15 Patents All Time
Limin Chen has been granted 15 US patents while listed as an inventor at Spectronics. The first was granted in 1996 and the most recent in June 2025. Limin Chen ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Limin Chen in Cypress, TX, US.

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12323268 Can-open master redundancy in PLC-based control system Vikas Rakhunde 2025-06-03
12055463 Meltable fluorescent dye for leak detection John Duerr 2024-08-06
11824682 Can-open master redundancy in PLC-based control system Vikas Rakhunde 2023-11-21 $45,086,000
11467054 Fluorescent dye formulation and leak detection method Jonathan Cooper, John Duerr, Jennifer Hunt 2022-10-11
10401253 Fluorescent dye formulation and leak detection method Jonathan Cooper, John Duerr, Jennifer Hunt 2019-09-03
9574694 Pipe freezer system 2017-02-21
8794644 Rollable log cart Daniel Charles Massaro 2014-08-05
8091876 Fixture for securing optoelectronic packages for wire and/or component bonding Kai-Sheng Lin, Chian-Hung Chen 2012-01-10
7519260 Coaxial optoelectronic device separation apparatus and method Kai-Sheng Lin, Chung-Yung Wang, Hung-Lun Chang, Chian-Hung Chen 2009-04-14
7468286 System and method for securing optoelectronic packages for mounting components at a mounting angle Kai-Sheng Lin, Chian-Hung Chen 2008-12-23
6598412 Interchangeable adapters for pipe freezer apparatus 2003-07-29
6506226 Hard metal or cermet body and method for producing the same Walter Lengauer, Hans Werner Daub, Klaus Dreyer, Dieter Kassel, Jose Luis GARCIA +1 more 2003-01-14
6408638 Pipe freezer with quick connect evaporator heads 2002-06-25
6110603 Hard-metal or cermet body, especially for use as a cutting insert Walter Lengauer, Hans Werner Daub, Klaus Dreyer, Dieter Kassel 2000-08-29
5548965 Multi-cavity evaporator Arthur Radichio 1996-08-27