USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Amkor Technology Singapore Holding Pte. Ltd.

USPTO PatentsView assignee record - 278 granted patents across 22 technology areas, active 2020–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H01L (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10).

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

Explore the portfolio See the ranking

278

Total patents granted

CPC technology areas

19.0

Avg claims per patent

5-year filing velocity

The verdict

Amkor holds 278 US patents across 22 technology areas, rank #1,493 of 50,000 tracked assignees.

#1,493
of 50,000 US assignees by volume: Top 2%
by Innovation Score (62.4/100): 19.0
avg claims per patent

Portfolio overview

Amkor Technology Singapore Holding Pte. Ltd. has been granted 278 US utility patents between 2020 and 2025, placing Amkor Technology Singapore Holding Pte. Ltd. at rank #1,493 across all assignees tracked by PlainPatent. This portfolio spans 22 distinct Cooperative Patent Classification (CPC) subclasses, averaging 19.0 claims per patent with primary concentration in H01L (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10). As a Foreign Corporation, Amkor Technology Singapore Holding Pte. Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Amkor sits between Fireeye, Inc. (279 patents, rank #1,489) and Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. (278 patents, rank #1,497) - the closest US assignees by grant volume. The composite Innovation Score of 62.4/100 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. Historical data spans 2020 through 2025, with 278 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. 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. Amkor Technology Singapore Holding Pte. Ltd.'s 19.0 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 22 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Amkor Technology Singapore Holding Pte. Ltd. against peers pursuing similar technology classes.

Fireeye

279
Geotab

279
Rensselaer Polyte…

279
Teijin

279
Carestream Health

278
Dassault Systemes

278
Infineon Americas

278
Mitsubishi Heavy…

278
Amkor Technology… ◀

278

What this shows Amkor holds 278 patents at rank #1,493, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Amkor

By rank, the assignees closest to #1,493 in granted patent volume.

Leaders in H01L (Semiconductor Devices NOT Covered BY Class H10)

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

Amkor's Innovation Score vs. every tracked assignee

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

62 Top 2% higher than 98% 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 · 2020–2025

Grants by year

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

View data table

Amkor Technology Singapore Holding Pte. Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2020	13	4.7%
2021	60	21.6%
2022	42	15.1%
2023	55	19.8%
2024	67	24.1%
2025	41	14.7%

Which technologies does Amkor Technology Singapore Holding Pte. Ltd. patent most?

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 273

H01Q - ANTENNAS, i.e. RADIO AERIALS 13

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 12

G06V - IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING 11

B81B - MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES 9

H10F - INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION 8

B81C - PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS 7

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 7

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 5

H10H - INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS 5

H10D - INORGANIC ELECTRIC SEMICONDUCTOR DEVICES 4

H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL 3

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 3

H01R - ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 3

G01P - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT 2

Top 15 of 22 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Standard

Where it ranks

Overall rank by patents

#1,493

Across all tracked assignees

Innovation Score

62.4 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 Amkor Technology Singapore Holding Pte. Ltd. hold?

Amkor Technology Singapore Holding Pte. Ltd. holds 278 US granted patents filed between 2020 and 2025, spanning 22 technology areas.

What is Amkor Technology Singapore Holding Pte. Ltd.'s Innovation Score?

Amkor Technology Singapore Holding Pte. Ltd. has an Innovation Score of 62.4 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Amkor Technology Singapore Holding Pte. Ltd. focus on?

Amkor Technology Singapore Holding Pte. Ltd.'s top technology area is H01L (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10) with 273 patents. The company has filed patents in 22 CPC subclasses total.

Is Amkor Technology Singapore Holding Pte. Ltd.'s patent filing rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Amkor Technology Singapore Holding Pte. Ltd..

What does claim depth mean for Amkor Technology Singapore Holding Pte. Ltd.'s patents?

Amkor Technology Singapore Holding Pte. Ltd.'s patents average 19.0 claims each. This falls within the standard range, providing solid legal coverage.

How is the Amkor Technology Singapore Holding Pte. Ltd. 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

Amkor's 278 grants land it in the top 2% 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 - Amkor ranks #1,493 of 50,000. Top 50 holders
Most of this portfolio concentrates in H01L - see who else leads that technology area. H01L 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.