USPTO 2015–2025 USPTO PatentsView Foreign Corporation

DONG GUAN SONG WEI Electric Technology Co., Ltd.

USPTO PatentsView assignee record - 34 granted patents across 25 technology areas, active 2015–2022. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: A47B (TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

5.6

Avg claims per patent

-11%

5-year filing velocity

The verdict

DONG holds 34 US patents across 25 technology areas, rank #9,242 of 50,000 tracked assignees.

#9,242
of 50,000 US assignees by volume: Top 55%
by Innovation Score (33.6/100): 5.6
avg claims per patent: -11%
filing velocity, last 5 yrs

Portfolio overview

DONG GUAN SONG WEI Electric Technology Co., Ltd. has been granted 34 US utility patents between 2015 and 2022, placing DONG GUAN SONG WEI Electric Technology Co., Ltd. at rank #9,242 across all assignees tracked by PlainPatent. This portfolio spans 25 distinct Cooperative Patent Classification (CPC) subclasses, averaging 5.6 claims per patent with primary concentration in A47B (TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE). As a Foreign Corporation, DONG GUAN SONG WEI Electric Technology Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, DONG sits between Cornerstone Research Group, Inc. (34 patents, rank #9,238) and E.f. Johnson Company (34 patents, rank #9,246) - the closest US assignees by grant volume. The composite Innovation Score of 33.6/100 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 16 grants, compared with 18 in the 2015–2019 window, a -11% 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. DONG GUAN SONG WEI Electric Technology Co., Ltd.'s 5.6 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 25 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark DONG GUAN SONG WEI Electric Technology Co., Ltd. against peers pursuing similar technology classes.

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34
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34
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34
Deckel MAHO Pfron…

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Datainfocom USA

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E F Johnson

34
DONG GUAN SONG WE… ◀

34

What this shows DONG holds 34 patents at rank #9,242, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near DONG

By rank, the assignees closest to #9,242 in granted patent volume.

Leaders in A47B (Tables)

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

DONG's Innovation Score vs. every tracked assignee

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

34 Top 55% higher than 45% 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 · 2015–2022

Grants by year

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

View data table

DONG GUAN SONG WEI Electric Technology Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	2.9%
2016	3	8.8%
2017	4	11.8%
2018	4	11.8%
2019	6	17.6%
2020	12	35.3%
2021	3	8.8%
2022	1	2.9%

Which technologies does DONG GUAN SONG WEI Electric Technology Co., Ltd. patent most?

A47B - TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE 11

F24C - DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION 6

F24B - DOMESTIC STOVES OR RANGES FOR SOLID FUELS ; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES 4

H01R - ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 3

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 3

A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES 2

G06F - ELECTRIC DIGITAL DATA PROCESSING 2

F21S - NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS 2

F24D - DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR 2

E06B - FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES 2

B05B - SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES 1

H03K - PULSE TECHNIQUE 1

G05B - CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 1

F16H - GEARING 1

G01P - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT 1

Top 15 of 25 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#9,242

Across all tracked assignees

Innovation Score

33.6 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 DONG GUAN SONG WEI Electric Technology Co., Ltd. hold?

DONG GUAN SONG WEI Electric Technology Co., Ltd. holds 34 US granted patents filed between 2015 and 2022, spanning 25 technology areas.

What is DONG GUAN SONG WEI Electric Technology Co., Ltd.'s Innovation Score?

DONG GUAN SONG WEI Electric Technology Co., Ltd. has an Innovation Score of 33.6 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does DONG GUAN SONG WEI Electric Technology Co., Ltd. focus on?

DONG GUAN SONG WEI Electric Technology Co., Ltd.'s top technology area is A47B (TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE) with 11 patents. The company has filed patents in 25 CPC subclasses total.

Is DONG GUAN SONG WEI Electric Technology Co., Ltd.'s patent filing rate increasing or decreasing?

DONG GUAN SONG WEI Electric Technology Co., Ltd.'s recent filing velocity is -11% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for DONG GUAN SONG WEI Electric Technology Co., Ltd.'s patents?

DONG GUAN SONG WEI Electric Technology Co., Ltd.'s patents average 5.6 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the DONG GUAN SONG WEI Electric Technology 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

DONG's 34 grants land it in the top 55% 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 - DONG ranks #9,242 of 50,000. Top 50 holders
Most of this portfolio concentrates in A47B - see who else leads that technology area. A47B 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 byPlainPatent 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.