USPTO 2015–2025 USPTO PatentsView Foreign Corporation

FCI Co., Ltd.

USPTO PatentsView assignee record - 39 granted patents across 24 technology areas, recorded in grant years 2015–2021. 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: H04B (TRANSMISSION).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

14.0

Avg claims per patent

-97%

5-year grant velocity

The verdict

According to USPTO PatentsView, FCI ranks #8,200 of 50,000 tracked US assignees by granted-patent volume, with 39 patents across 24 technology areas.

#8,200
of 50,000 US assignees by volume: Top 41%
by Innovation Score (38.5/100): 14.0
avg claims per patent: -97%
grant velocity, last 5 yrs

Portfolio overview

FCI Co., Ltd. has been granted 39 US utility patents between 2015 and 2021, placing FCI Co., Ltd. at #8,200 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 24 distinct Cooperative Patent Classification (CPC) subclasses, averaging 14.0 claims per patent with primary concentration in H04B (TRANSMISSION). As a Foreign Corporation, FCI Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, FCI sits between Evolution Optiks Limited (39 patents, rank #8,195) and Fractus, S.a. (39 patents, rank #8,203) - the closest US assignees by grant volume. The composite Innovation Score of 38.5/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 1 grants, compared with 38 in the 2015–2019 window, a -97% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.

Claim depth and technology breadth describe this aggregate record. FCI Co., Ltd.'s 14.0 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 24 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

Evolution Optiks

39
Elfa Internationa…

39
Ensyn Renewables

39
F I S Fabbrica It…

39
Fuzhou ESUN

39
Faiveley Transpor…

39
Flexera Software

39
Fractus

39
FCI ◀

39

What this shows FCI holds 39 patents at rank #8,199, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near FCI

By rank, the assignees closest to #8,199 in granted patent volume.

Leaders in H04B (Transmission)

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

FCI's Innovation Score vs. every tracked assignee

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

38 Top 41% higher than 59% 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

FCI Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	15	38.5%
2016	4	10.3%
2017	6	15.4%
2018	7	17.9%
2019	6	15.4%
2021	1	2.6%

Which technologies does FCI Co., Ltd. patent most?

H04B - TRANSMISSION 8

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 7

H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 7

H01R - ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 7

H03F - AMPLIFIERS 6

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 5

G06F - ELECTRIC DIGITAL DATA PROCESSING 4

Y02D - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE 4

H04W - WIRELESS COMMUNICATION NETWORKS 4

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 3

H03G - CONTROL OF AMPLIFICATION 2

H03M - CODING; DECODING; CODE CONVERSION IN GENERAL 2

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 1

G05F - SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 1

H03B - GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS 1

Top 15 of 24 technology areas

Grant record at a glance

Portfolio Volume 39 grants

CPC subclasses 24

Avg. claims / grant 14.0

Velocity -97%

Historical grant data only; it does not rate legal strength or current strategy.

Where it ranks

Overall rank by patents

#8,200

of 50,000 tracked assignees

Innovation Score

38.5 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

Where does FCI Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), FCI Co., Ltd. ranks #8,200 of 50,000 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does FCI Co., Ltd. hold?

FCI Co., Ltd. holds 39 US utility patents granted between 2015 and 2021, spanning 24 technology areas.

What is FCI Co., Ltd.'s Innovation Score?

FCI Co., Ltd. has an Innovation Score of 38.5 out of 100 (top 41% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does FCI Co., Ltd. focus on?

FCI Co., Ltd.'s top technology area is H04B (TRANSMISSION) with 8 patents. Grants appear in 24 CPC subclasses total.

Is FCI Co., Ltd.'s patent grant rate increasing or decreasing?

FCI Co., Ltd.'s recent grant velocity is -97% 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 FCI Co., Ltd.'s patents?

FCI Co., Ltd.'s patents average 14.0 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 FCI Co., 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

FCI's 39 grants land it in the top 41% 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 - FCI ranks #8,200 of 50,000. Top 50 holders
Most of this portfolio concentrates in H04B - see who else leads that technology area. H04B 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

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.