Where does Yamashin-filter Corp. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Yamashin-filter Corp. ranks #8,723 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 Yamashin-filter Corp. hold?

Yamashin-filter Corp. holds 37 US utility patents granted between 2016 and 2025, spanning 28 technology areas.

What is Yamashin-filter Corp.'s Innovation Score?

Yamashin-filter Corp. has an Innovation Score of 43.7 out of 100 (top 28% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Yamashin-filter Corp. focus on?

Yamashin-filter Corp.'s top technology area is B01D (Separation) with 33 patents, ranking #133 of 3,536 assignees active in that subclass. Grants appear in 28 CPC subclasses total.

Is Yamashin-filter Corp.'s patent grant rate increasing or decreasing?

Yamashin-filter Corp.'s recent grant velocity is +140% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Yamashin-filter Corp.'s patents?

Yamashin-filter Corp.'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 Yamashin-filter 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

Yamashin-filter Corp.

USPTO PatentsView assignee record - 37 granted patents across 28 technology areas, recorded in grant years 2016–2025. 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: B01D (Separation).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Yamashin-filter ranks #8,723 of 49,997 tracked US assignees by granted-patent volume, with 37 patents across 28 technology areas.

#8,723
of 49,997 US assignees by volume: Top 28%
by Innovation Score (43.7/100): 8.0
avg claims per patent: +140%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8723 · Foreign Corporation #8,723 · 37 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 37 grants
UPPER-Q #8,723/49,997
PHOTO-FINISH iTool Equipment…
CPC-FOCUS B01D · 28 areas
INNOV-PAR 43.7/100
CLAIMS-SPARSE 8.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +140% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: iTool Equipment Holding LLC (±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 Yamashin-filter’s 43.7 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 12.6 pts (29%) Velocity 7.6 pts (17%) Breadth 18.7 pts (43%) Claim depth 4.8 pts (11%)

Qualcomm Incorporated · highest

85
Exmark Manufacturing… · near

44
Iwis Motorsysteme & KG · near

44
Magseis FF · near

44
Superior Communicati… · near

44
Yamashin-filter · this assignee

44
3D Lighting… · lowest

7

What this shows Yamashin-filter's Innovation Score is 43.7/100 (top 28% 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 Yamashin-filter?

Each dot is one of Yamashin-filter’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). Yamashin-filter’s own 8.0 claims/patent is at or below the 11.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Yamashin-filter's grants concentrate

Yamashin-filter Corp. is a focused PatentsView assignee: 28 CPC subclasses with 89.2% of grants classified under B01D (Separation). Peak complete grant year is 2019 (6 grants) versus a trough of 1 in 2016. By volume, Yamashin-filter sits between Wingen, LLC and iTool Equipment Holding LLC.

Yamashin-filter's three-year grant acceleration

Yamashin-filter Corp. shows 16 grants in 2022–2024 against only 14 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Wingen

37
Wintek

37
Wirepath Home Sys…

37
Xylem Europe

37
Yuyao Yuchang Ele…

37
Zagg Intellectual…

37
Zodiac Aero Elect…

37
itool Equipment H…

37
Yamashin-filter ◀

37

What this shows Yamashin-filter holds 37 patents at rank #8,722, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Yamashin-filter

By rank, the assignees closest to #8,722 in granted patent volume.

Leaders in B01D (Separation)

Other assignees with the most granted patents in Yamashin-filter's primary technology class.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Yamashin-filter, neither rank-band nor same-CPC leaders (those blocks stay above). In B01D (Separation), Yamashin-filter ranks #133 of 3,536 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (44 here).

Iwis Motorsysteme GMBH & Co. KG 44 Exmark Manufacturing Company Incorporated 44 Superior Communications, Inc. 44 Magseis FF LLC 44

Yamashin-filter's Innovation Score vs. every tracked assignee

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

44 Top 28% higher than 72% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Yamashin-filter Corp. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	2.7%
2018	3	8.1%
2019	6	16.2%
2020	5	13.5%
2021	3	8.1%
2022	6	16.2%
2023	5	13.5%
2024	5	13.5%
2025partial year	3	8.1%

Which technologies does Yamashin-filter Corp. patent most?

B01D - Separation 33

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 9

G01L - Measuring Force, Stress, Torque, Work, Mechanical Power, Mechanical Efficiency, OR Fluid Pressure 5

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 3

F01M - Lubricating OF Machines OR Engines IN GENERAL; Lubricating Internal Combustion ENGINES; Crankcase Ventilating 3

F02M - Supplying Combustion Engines IN General With Combustible Mixtures OR Constituents Thereof 2

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume 2

H01H - Electric SWITCHES; RELAYS; SELECTORS; Emergency Protective Devices 1

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 1

F01N - Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines 1

Y02T - Climate Change Mitigation Technologies Related TO Transportation 1

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 1

B60K - Arrangement OR Mounting OF Propulsion Units OR OF Transmissions IN VEHICLES; Arrangement OR Mounting OF Plural Diverse Prime-movers IN VEHICLES; Auxiliary Drives FOR VEHICLES; Instrumentation OR Dashboards FOR VEHICLES; Arrangements IN Connection With Cooling, AIR Intake, GAS Exhaust OR Fuel Supply 1

F16N - Lubricating 1

B04C - Apparatus Using Free Vortex Flow, e.g. Cyclones 1

Top 15 of 28 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

Yamashin-filter Corp.'s patent record in context - here's where to go next.

Yamashin-filter Corp.'s lead technology class is B01D (Separation), 89.2% of its portfolio - see every assignee active in that class. Explore B01D
Ranked #8,723 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Yamashin-filter Corp. against Wingen, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 43.7/100 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.