Where does Fujikin Incorporated rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Fujikin Incorporated ranks #1,552 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 Fujikin Incorporated hold?

Fujikin Incorporated holds 267 US utility patents granted between 2015 and 2025, spanning 56 technology areas.

What is Fujikin Incorporated's Innovation Score?

Fujikin Incorporated has an Innovation Score of 57.5 out of 100 (top 5% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Fujikin Incorporated focus on?

Fujikin Incorporated's top technology area is F16K (VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating) with 153 patents, ranking #3 of 1,836 assignees active in that subclass. Grants appear in 56 CPC subclasses total.

Is Fujikin Incorporated's patent grant rate increasing or decreasing?

Fujikin Incorporated's recent grant velocity is +30% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Fujikin Incorporated's patents?

Fujikin Incorporated's patents average 8.0 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 Fujikin Incorporated 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

Fujikin Incorporated

USPTO PatentsView assignee record - 267 granted patents across 56 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: F16K (VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Fujikin ranks #1,552 of 49,997 tracked US assignees by granted-patent volume, with 267 patents across 56 technology areas.

#1,552
of 49,997 US assignees by volume: Top 5%
by Innovation Score (57.5/100): 8.0
avg claims per patent: +30%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1552 · Foreign Corporation #1,552 · 267 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MID 267 grants
TOP-DECILE #1,552/49,997
PHOTO-FINISH Azbil
CPC-WIDE F16K · 56 areas
INNOV-PAR 57.5/100
CLAIMS-PAR 8.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +30% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Azbil Corporation (±0 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.

How Fujikin’s 57.5 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 19.3 pts (34%) Velocity 8.3 pts (14%) Breadth 25.0 pts (44%) Claim depth 4.8 pts (8%)

Qualcomm Incorporated · highest

85
Bell Helicopter… · near

57
Fujikin Incorporated · this assignee

57
General Mills · near

57
Purdue Pharma · near

57
Safran Helicopter… · near

57
3D Lighting… · lowest

7

What this shows Fujikin's Innovation Score is 57.5/100 (top 5% 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.

Does more volume mean deeper claims for Fujikin?

Each dot is one of Fujikin’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Fujikin’s own 8.0 claims/patent is at or below the 11.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Fujikin vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

How Fujikin's grant cadence moved

Between 2020–2024, Fujikin Incorporated received 143 grants versus 110 in 2015–2019 (+30% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2022 at 50 grants and bottomed in 2023 at 17. Lead class F16K accounts for 57.3% of the portfolio across 56 subclasses. Volume neighbours: Kepler Computing Inc. (#1,548) and Ushio Denki Kabushiki Kaisha (#1,556).

Fujikin's three-year grant acceleration

From 2019–2021 to 2022–2024, Fujikin Incorporated moved from 73 to 91 grants (1.25x 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 #709. See the growth leaderboard.

Kepler Computing

268
University of Sci…

268
Azbil

267
Bombardier

267
Fujitsu TEN

267
Ignis Innovation

267
S-printing Soluti…

267
Ushio Denki

267
Fujikin Incorpora… ◀

267

What this shows Fujikin holds 267 patents at rank #1,552, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Fujikin

By rank, the assignees closest to #1,552 in granted patent volume.

Leaders in F16K (Valves)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Fujikin, neither rank-band nor same-CPC leaders (those blocks stay above). In F16K (Valves), Fujikin ranks #3 of 1,836 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (57 here).

General Mills, Inc. 57 Purdue Pharma L.P. 57 Safran Helicopter Engines 57 Bell Helicopter Textron Inc. 57

Similar claim depth

Nearest assignees by average claims per patent (8.0 here).

Dupont Safety & Construction, Inc. 8.0 avg Chengdu University OF Technology 8.0 avg Chiyoda Corporation 8.0 avg Korloy Inc. 8.0 avg

Fujikin's Innovation Score vs. every tracked assignee

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

57 Top 5% higher than 95% 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

Fujikin Incorporated patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	21	7.9%
2016	24	9.0%
2017	21	7.9%
2018	23	8.6%
2019	21	7.9%
2020	19	7.1%
2021	33	12.4%
2022	50	18.7%
2023	17	6.4%
2024	24	9.0%
2025partial year	14	5.2%

Which technologies does Fujikin Incorporated patent most?

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 153

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 84

Y10T - Technical Subjects Covered BY Former US Classification 57

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume 45

H01L - Semiconductor Devices NOT Covered BY Class H10 38

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 31

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 23

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 19

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 15

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 14

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 11

G01L - Measuring Force, Stress, Torque, Work, Mechanical Power, Mechanical Efficiency, OR Fluid Pressure 9

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 8

F16J - Pistons ; CYLINDERS; Sealings 7

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 7

Top 15 of 56 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Fujikin Incorporated's patent record in context - here's where to go next.

Fujikin Incorporated's lead technology class is F16K (VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating), 57.3% of its portfolio - see every assignee active in that class. Explore F16K
Ranked #1,552 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Fujikin Incorporated against Kepler Computing Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 57.5/100 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.