Company Analysis
Sign in

United Microelectronic Corp. (UMC)

NYSE: UMC · Semiconductors & Related Devices · Taipei, TW · filing with the SEC since 1997
Full chart Alerts Compare
Grade5.7
◀ Past 6.3● Present 6.2▶ Future 4.6
1 est.
OverviewBusinessFinancialsGradeForecastSentimentOwnershipPeopleFilingsPatents Chart

Patents

US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026

80 patents granted to the 9 names below, as the owner printed on each patent when it was granted. A later sale, a lapse or an expiry is not read, so this is what was granted to United Microelectronic Corp.’s names, not what it holds today.

Patents granted
80
80 utility, 1976 to Dec 31, 2025
Granted in 2025
18
Against 9 in 2024 and 14 in 2023
Applications published
3,706
428 of them in 2025
Names they are printed under
9
its own name, a subsidiary
By yearGrantedApplications published
'10'11'13'14'15'16'17'18'19'20'21'22'23'24'25
Each pair is one calendar year. Applications are published about eighteen months after filing, so the newest years read low.
What they are aboutgrants since 2021
Semiconductors45
Surface technology, coating6
Measurement5
Optics3
Control2
Electrical machinery, apparatus, energy1
Handling1
Computer technology1
Chemical engineering1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name9 counted
UNITED MICROELECTRONICS CORP. its own name
named as the applicant on its applications, in TW. 3 more under the same name are not counted (printed in CN, printed in US)
0 granted
3,582 published
United Semiconductor (Xiamen) Co., Ltd. a subsidiary
CN, as the owner printed on each patent
49 granted
69 published
United Semiconductor Japan Co., Ltd. a subsidiary
JP, as the owner printed on each patent
25 granted
14 published
United Semiconductor (Xiamen) Co., Ltd. a subsidiary
named as the applicant on its applications, in CN
0 granted
23 published
HeJian Technology (Suzhou) Co., Ltd. a subsidiary
CN, as the owner printed on each patent
4 granted
6 published
United Semiconductor Japan Co., Ltd. a subsidiary
named as the applicant on its applications, in JP
0 granted
5 published
Wavetek Microelectronics Corporation a subsidiary
named as the applicant on its applications, in TW
0 granted
5 published
Wavetek Microelectronics Corporation a subsidiary
TW, as the owner printed on each patent
2 granted
1 published
HeJian Technology (Suzhou) Co., Ltd. a subsidiary
named as the applicant on its applications, in CN
0 granted
1 published
Names not counted (1)
Green Earth Limited
Most of its patents print VG; this name counts in TW. 2 granted and 1 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Dec 9, 202512,495,608Semiconductor device and method of manufacturing semiconductor deviceSemiconductorsUnited Semiconductor Japan Co., Ltd.
Oct 14, 202512,443,178Machine monitoring system and machine monitoring methodMeasurementUnited Semiconductor (Xiamen) Co., Ltd.
Sep 30, 202512,432,997Method for forming an epitaxial layer with better qualitySemiconductorsUnited Semiconductor (Xiamen) Co., Ltd.
Sep 30, 202512,427,548Cleaning process of wafer polishing pad and cleaning nozzleChemical engineeringUnited Semiconductor (Xiamen) Co., Ltd.
Sep 16, 202512,416,866Overlay markOpticsUnited Semiconductor (Xiamen) Co., Ltd.
Aug 26, 202512,402,371Method for manufacturing semiconductor device with deeply depleted channelSemiconductorsUnited Semiconductor Japan Co., Ltd.
Aug 19, 202512,394,673Semiconductor manufacturing processSemiconductorsUnited Semiconductor (Xiamen) Co., Ltd.
Jul 8, 202512,356,677Semiconductor device and method for fabricating the sameSemiconductorsUnited Semiconductor (Xiamen) Co., Ltd.
Jun 24, 202512,339,315Probe position monitoring structure and method of monitoring position of probeMeasurementUnited Semiconductor Japan Co., Ltd.
May 27, 202512,312,671Mask structure for deposition device, deposition device, and operation method thereofSurface technology, coatingUnited Semiconductor Japan Co., Ltd.
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Dec 25, 20252025/0393478SEMICONDUCTOR STRUCTURE AND MANUFACTURING METHOD THEREOFSemiconductorsUNITED MICROELECTRONICS CORP.
Dec 25, 20252025/0391661MANUFACTURING METHOD OF SEMICONDUCTOR STRUCTURESemiconductorsUNITED MICROELECTRONICS CORP.
Dec 25, 20252025/0390015PHOTOMASK AND METHOD FOR TRANSFERRING PATTERNOpticsUNITED MICROELECTRONICS CORP.
Dec 25, 20252025/0387929SMART CASSETTE AND CALIBRATION METHOD FOR ROBOTIC ARMHandlingUNITED MICROELECTRONICS CORP.
Dec 18, 20252025/0386739MAGNETORESISTIVE RANDOM ACCESS MEMORY DEVICE AND MANUFACTURING METHOD THEREOFSemiconductorsUNITED MICROELECTRONICS CORP.
Dec 18, 20252025/0386738MRAM STRUCTURE AND FABRICATING METHOD OF THE SAMESemiconductorsUNITED MICROELECTRONICS CORP.
Dec 18, 20252025/0386734METHOD FOR FABRICATING MAGNETORESISTIVE RANDOM ACCESS MEMORYSemiconductorsUNITED MICROELECTRONICS CORP.
Dec 18, 20252025/0386573Semiconductor manufacturing methodSemiconductorsUnited Semiconductor (Xiamen) Co., Ltd.
Dec 18, 20252025/0386532SEMICONDUCTOR STRUCTURE AND MANUFACTURING METHOD THEREOFSemiconductorsUNITED MICROELECTRONICS CORP.
Dec 18, 20252025/0386531SEMICONDUCTOR DEVICE INCLUDING III-V COMPOUND SEMICONDUCTOR LAYERSemiconductorsUNITED MICROELECTRONICS CORP.
What it applied for, 2024 to 2025: Semiconductors 714 · Computer technology 44 · Optics 18 · Basic communication processes 8 · Measurement 8 · Electrical machinery, apparatus, energy 7.

A patent is counted where the owner printed on it when it was granted carries the company’s own name, a former name, the name of a subsidiary its annual report lists, or its own name with a patent-holding phrase (Technology Licensing, Intellectual Property and the like), once the legal form, case and punctuation are set aside, and prints a country that name counts in. PatentsView’s data are published under the Creative Commons Attribution 4.0 licence. Source: PatentsView's granted patents and pre-grant publications, disambiguated, from the USPTO's Open Data Portal, through Dec 31, 2025, read Oct 27, 2026.

SI Assistanton UMC · research, not advice