USPTO 2015–2025 USPTO PatentsView Foreign Corporation

United Microelectronics Corp.

USPTO PatentsView assignee record - 4,034 granted patents across 119 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H10D (INORGANIC ELECTRIC SEMICONDUCTOR DEVICES).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

4,034

Total patents granted

119

CPC technology areas

12.3

Avg claims per patent

+7%

5-year filing velocity

The verdict

United holds 4,034 US patents across 119 technology areas, rank #87 of 50,000 tracked assignees.

#87
of 50,000 US assignees by volume: Top 1%
by Innovation Score (66.8/100): 12.3
avg claims per patent: +7%
filing velocity, last 5 yrs

Portfolio overview

United Microelectronics Corp. has been granted 4,034 US utility patents between 2015 and 2025, placing United Microelectronics Corp. at rank #87 across all assignees tracked by PlainPatent. This portfolio spans 119 distinct Cooperative Patent Classification (CPC) subclasses, averaging 12.3 claims per patent with primary concentration in H10D (INORGANIC ELECTRIC SEMICONDUCTOR DEVICES). As a Foreign Corporation, United Microelectronics Corp. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, United sits between Caterpillar Inc. (4,178 patents, rank #83) and Monsanto Technology Llc (3,956 patents, rank #91) - the closest US assignees by grant volume. The composite Innovation Score of 66.8/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 2,089 grants, compared with 1,945 in the 2015–2019 window, a +7% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. United Microelectronics Corp.'s 12.3 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark United Microelectronics Corp. against peers pursuing similar technology classes.

Caterpillar

4,178
Konica Minolta

4,158
Kyocera

4,151
United

4,091
United Microelect… ◀

4,034
HON HAI Precision…

4,005
Western Digital

3,986
LG Innotek

3,977
Monsanto Technolo…

3,956

What this shows United holds 4,034 patents at rank #87, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near United

By rank, the assignees closest to #87 in granted patent volume.

Leaders in H10D (Inorganic Electric Semiconductor Devices)

Other assignees with the most granted patents in United's primary technology class.

United's Innovation Score vs. every tracked assignee

Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)

67 Top 1% higher than 99% of 50,000 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

USPTO utility patent grants by year · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

United Microelectronics Corp. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	291	7.2%
2016	385	9.5%
2017	409	10.1%
2018	399	9.9%
2019	461	11.4%
2020	396	9.8%
2021	350	8.7%
2022	323	8.0%
2023	372	9.2%
2024	344	8.5%
2025	304	7.5%

Which technologies does United Microelectronics Corp. patent most?

H10D - INORGANIC ELECTRIC SEMICONDUCTOR DEVICES 2,180

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 1,985

H10B - ELECTRONIC MEMORY DEVICES 1,112

G11C - STATIC STORES 719

H10N - ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR 421

G06F - ELECTRIC DIGITAL DATA PROCESSING 243

G03F - PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR; 141

H03K - PULSE TECHNIQUE 82

G01R - MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 57

H10F - INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION 50

B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES 40

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 38

B81C - PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS 35

B81B - MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES 34

H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 30

Top 15 of 119 technology areas

Patent Moat Analysis

Portfolio Volume Strong

Tech Breadth Diversified

Claim Depth Standard

Velocity Growing

Where it ranks

Overall rank by patents

#87

Across all tracked assignees

Innovation Score

66.8 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does United Microelectronics Corp. hold?

United Microelectronics Corp. holds 4,034 US granted patents filed between 2015 and 2025, spanning 119 technology areas.

What is United Microelectronics Corp.'s Innovation Score?

United Microelectronics Corp. has an Innovation Score of 66.8 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does United Microelectronics Corp. focus on?

United Microelectronics Corp.'s top technology area is H10D (INORGANIC ELECTRIC SEMICONDUCTOR DEVICES) with 2,180 patents. The company has filed patents in 119 CPC subclasses total.

Is United Microelectronics Corp.'s patent filing rate increasing or decreasing?

United Microelectronics Corp.'s recent filing velocity is +7% compared to the prior five-year period. The company is maintaining or growing its patent output.

What does claim depth mean for United Microelectronics Corp.'s patents?

United Microelectronics Corp.'s patents average 12.3 claims each. This falls within the standard range, providing solid legal coverage.

How is the United Microelectronics Corp. patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

How to use this portfolio

United's 4,034 grants land it in the top 1% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - United ranks #87 of 50,000. Top 50 holders
Most of this portfolio concentrates in H10D - see who else leads that technology area. H10D leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.