Where does United Microelectronics Corp. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), United Microelectronics Corp. ranks #87 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does United Microelectronics Corp. hold?

United Microelectronics Corp. holds 4,034 US utility patents granted 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 (top 1% of the corpus). This composite metric weighs portfolio volume (40%), grant 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. Grants appear in 119 CPC subclasses total.

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

United Microelectronics Corp.'s recent grant velocity is -8% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

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

United Microelectronics Corp.'s patents average 12.3 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

United Microelectronics Corp.

USPTO PatentsView assignee record - 4,034 granted patents across 119 technology areas, recorded in grant years 2015–2025. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: H10D (Inorganic Electric Semiconductor Devices).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, United ranks #87 of 49,997 tracked US assignees by granted-patent volume, with 4,034 patents across 119 technology areas.

#87
of 49,997 US assignees by volume: Top 1%
by Innovation Score (66.8/100): 12.3
avg claims per patent: -8%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R87 · Foreign Corporation #87 · 4,034 grants

GRANTS-LARGE · TOP-DECILE · NEAR-PEER · CPC-WIDE · INNOV-STRONG · CLAIMS-RICH · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-LARGE 4.0K grants
TOP-DECILE #87/49,997
NEAR-PEER HON HAI Precision…
CPC-WIDE H10D · 119 areas
INNOV-STRONG 66.8/100
CLAIMS-RICH 12.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT -8% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: HON HAI Precision Industry Co., Ltd. (±29 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

Qualcomm Incorporated · highest

85
Apex Brands · near

67
Inalfa Roof Systems… · near

67
Smith & Nephew Asia… · near

67
United Microelectron… · this assignee

67
Allstate Insurance · near

67
3D Lighting… · lowest

7

What this shows United's Innovation Score is 66.8/100 (top 1% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

How United's grant cadence moved

Between 2020–2024, United Microelectronics Corp. received 1,785 grants versus 1,945 in 2015–2019 (-8% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2019 at 461 grants and bottomed in 2015 at 291. Lead class H10D accounts for 54% of the portfolio across 119 subclasses. Volume neighbours: Caterpillar Inc. (#83) and Monsanto Technology LLC (#91).

United's three-year grant acceleration

From 2019–2021 to 2022–2024, United Microelectronics Corp. moved from 1,207 to 1,039 grants (0.86x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,624. See the growth leaderboard.

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.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for United, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (67 here).

Smith & Nephew Asia Pacific PTE. Limited 67 Apex Brands, Inc. 67 Inalfa Roof Systems Group B.V. 67 Allstate Insurance Company 67

Similar claim depth

Nearest assignees by average claims per patent (12.3 here).

Nissan Chemical Corporation 12.3 avg True Velocity IP Holdings, Inc. 12.3 avg Southco, Inc. 12.3 avg Traeger Pellet Grills, LLC 12.3 avg

United's Innovation Score vs. every tracked assignee

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

67 Top 1% higher than 99% of 49,997 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%
2025partial year	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

Where it ranks

Overall rank by patents

#87

of 49,997 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?

What to do with this data

United Microelectronics Corp.'s patent record in context - here's where to go next.

United Microelectronics Corp.'s lead technology class is H10D (Inorganic Electric Semiconductor Devices), 54% of its portfolio - see every assignee active in that class. Explore H10D
Ranked #87 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare United Microelectronics Corp. against Caterpillar Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 66.8/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

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

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 by PlainPatent, US Patent Intelligence Editorial Process · 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.