USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Fairchild Korea Semiconductor Ltd.

USPTO PatentsView assignee record - 78 granted patents across 24 technology areas, active 2015–2021. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H02M (APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER;).

Compiled by PlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

18.7

Avg claims per patent

-99%

5-year filing velocity

The verdict

Fairchild holds 78 US patents across 24 technology areas, rank #4,510 of 50,000 tracked assignees.

#4,510
of 50,000 US assignees by volume: Top 28%
by Innovation Score (43.6/100): 18.7
avg claims per patent: -99%
filing velocity, last 5 yrs

Portfolio overview

Fairchild Korea Semiconductor Ltd. has been granted 78 US utility patents between 2015 and 2021, placing Fairchild Korea Semiconductor Ltd. at rank #4,510 across all assignees tracked by PlainPatent. This portfolio spans 24 distinct Cooperative Patent Classification (CPC) subclasses, averaging 18.7 claims per patent with primary concentration in H02M (APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER;). As a Foreign Corporation, Fairchild Korea Semiconductor Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Fairchild sits between Bender Gmbh & Co. KG (78 patents, rank #4,506) and Grote Industries, Inc. (78 patents, rank #4,514) - the closest US assignees by grant volume. The composite Innovation Score of 43.6/100 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 1 grants, compared with 77 in the 2015–2019 window, a -99% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. Fairchild Korea Semiconductor Ltd.'s 18.7 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 24 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Fairchild Korea Semiconductor Ltd. against peers pursuing similar technology classes.

Bender & KG

78
Curt G Joa

78
EberspÄCHER Clima…

78
Elekta AB (publ)

78
Forage Genetics I…

78
Gaztransport ET T…

78
Garmin Internatio…

78
Grote Industries

78
Fairchild Korea S… ◀

78

What this shows Fairchild holds 78 patents at rank #4,510, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Fairchild

By rank, the assignees closest to #4,510 in granted patent volume.

Leaders in H02M (Apparatus FOR Conversion Between AC AND AC)

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

Fairchild's Innovation Score vs. every tracked assignee

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

44 Top 28% higher than 72% 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 · 2015–2021

Grants by year

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

View data table

Fairchild Korea Semiconductor Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	19	24.4%
2016	22	28.2%
2017	29	37.2%
2018	7	9.0%
2021	1	1.3%

Which technologies does Fairchild Korea Semiconductor Ltd. patent most?

H02M - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 45

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 32

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 13

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 12

H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 10

H03K - PULSE TECHNIQUE 8

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 7

H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 7

G01R - MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 7

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 5

H10D - INORGANIC ELECTRIC SEMICONDUCTOR DEVICES 5

H10N - ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR 3

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 3

G05F - SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 2

H02N - ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR 2

Top 15 of 24 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#4,510

Across all tracked assignees

Innovation Score

43.6 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 Fairchild Korea Semiconductor Ltd. hold?

Fairchild Korea Semiconductor Ltd. holds 78 US granted patents filed between 2015 and 2021, spanning 24 technology areas.

What is Fairchild Korea Semiconductor Ltd.'s Innovation Score?

Fairchild Korea Semiconductor Ltd. has an Innovation Score of 43.6 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Fairchild Korea Semiconductor Ltd. focus on?

Fairchild Korea Semiconductor Ltd.'s top technology area is H02M (APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF) with 45 patents. The company has filed patents in 24 CPC subclasses total.

Is Fairchild Korea Semiconductor Ltd.'s patent filing rate increasing or decreasing?

Fairchild Korea Semiconductor Ltd.'s recent filing velocity is -99% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Fairchild Korea Semiconductor Ltd.'s patents?

Fairchild Korea Semiconductor Ltd.'s patents average 18.7 claims each. This falls within the standard range, providing solid legal coverage.

How is the Fairchild Korea Semiconductor 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

Fairchild's 78 grants land it in the top 28% 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 - Fairchild ranks #4,510 of 50,000. Top 50 holders
Most of this portfolio concentrates in H02M - see who else leads that technology area. H02M 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 by PlainPatent 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.