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

According to USPTO PatentsView (2015–2025 granted utility patents), Sango Co., Ltd. ranks #11,063 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 Sango Co., Ltd. hold?

Sango Co., Ltd. holds 28 US utility patents granted between 2016 and 2025, spanning 31 technology areas.

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

Sango Co., Ltd. has an Innovation Score of 38.0 out of 100 (top 42% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Sango Co., Ltd.'s recent grant velocity is -50% 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 Sango Co., Ltd.'s patents?

Sango Co., Ltd.'s patents average 8.6 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 Sango 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Sango Co., Ltd.

Q: What technology areas does Sango Co., Ltd. focus on?

Sango Co., Ltd.'s top technology area is F01N (Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines) with 8 patents, ranking #115 of 487 assignees active in that subclass. Grants appear in 31 CPC subclasses total.

USPTO PatentsView assignee record - 28 granted patents across 31 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: F01N (Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Sango ranks #11,063 of 49,997 tracked US assignees by granted-patent volume, with 28 patents across 31 technology areas.

#11,063
of 49,997 US assignees by volume: Top 42%
by Innovation Score (38.0/100): 8.6
avg claims per patent: -50%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R11063 · Foreign Corporation #11,063 · 28 grants

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

GRANTS-SMALL 28 grants
UPPER-Q #11,063/49,997
PHOTO-FINISH Rock River Arms
CPC-FOCUS F01N · 31 areas
INNOV-THIN 38.0/100
CLAIMS-PAR 8.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -50% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Rock River Arms, Inc. (±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 Sango’s 38.0 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 11.6 pts (31%) Velocity 1.5 pts (4%) Breadth 19.7 pts (52%) Claim depth 5.2 pts (14%)

Qualcomm Incorporated · highest

85
Korea Photonics… · near

38
Resinate Materials… · near

38
Sango · this assignee

38
Tokyo Parts Industrial · near

38
Travel Caddy · near

38
3D Lighting… · lowest

7

What this shows Sango's Innovation Score is 38.0/100 (top 42% 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 Sango?

Each dot is one of Sango’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). Sango’s own 8.6 claims/patent is at or below the 12.3 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Sango's grants concentrate

Sango Co., Ltd. is a focused PatentsView assignee: 31 CPC subclasses with 28.6% of grants classified under F01N (Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines). Peak complete grant year is 2016 (10 grants) versus a trough of 1 in 2018. By volume, Sango sits between Rock River Arms, Inc. and Shenzhen Institute OF Terahertz Technology AND Innovation.

Sango's three-year grant acceleration

Sango Co., Ltd. shows 2 grants in 2022–2024 against only 9 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.

Rock River Arms

28
Rock-tenn Shared…

28
Roka Sports

28
Rosetta Genomics

28
Sapproro Medical…

28
Schroeder Industr…

28
Shakespeare

28
Shenzhen Institut…

28
Sango ◀

28

What this shows Sango holds 28 patents at rank #11,060, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sango

By rank, the assignees closest to #11,060 in granted patent volume.

Leaders in F01N (Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR E…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Sango, neither rank-band nor same-CPC leaders (those blocks stay above). In F01N (Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR E…), Sango ranks #115 of 487 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (38 here).

Korea Photonics Technology Institute 38 Resinate Materials Group, Inc. 38 Travel Caddy, Inc. 38 Tokyo Parts Industrial Co., Ltd. 38

Sango's Innovation Score vs. every tracked assignee

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

38 Top 42% higher than 58% 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

Sango Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	10	35.7%
2017	5	17.9%
2018	1	3.6%
2019	2	7.1%
2020	5	17.9%
2021	2	7.1%
2022	1	3.6%
2024	1	3.6%
2025partial year	1	3.6%

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

F01N - Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines 8

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 6

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 4

F23D - Burners 4

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 3

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 3

F23L - Supplying AIR OR Non-combustible Liquids OR Gases TO Combustion Apparatus IN General ; Valves OR Dampers Specially Adapted FOR Controlling AIR Supply OR Draught IN Combustion Apparatus ; Inducing Draught IN Combustion APPARATUS; Tops FOR Chimneys OR Ventilating SHAFTS; Terminals FOR Flues 3

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 2

F23Q - Ignition ; Extinguishing-devices 2

F01P - Cooling OF Machines OR Engines IN GENERAL; Cooling OF Internal-combustion Engines 2

Y02T - Climate Change Mitigation Technologies Related TO Transportation 2

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 1

B82Y - Specific Uses OR Applications OF NANOSTRUCTURES; Measurement OR Analysis OF NANOSTRUCTURES; Manufacture OR Treatment OF Nanostructures 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

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 1

Top 15 of 31 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

Sango Co., Ltd.'s patent record in context - here's where to go next.

Sango Co., Ltd.'s lead technology class is F01N (Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines), 28.6% of its portfolio - see every assignee active in that class. Explore F01N
Ranked #11,063 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sango Co., Ltd. against Rock River Arms, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 38.0/100 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.