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

According to USPTO PatentsView (2015–2025 granted utility patents), Dakang Holding Co., Ltd. ranks #15,943 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 Dakang Holding Co., Ltd. hold?

Dakang Holding Co., Ltd. holds 18 US utility patents granted between 2017 and 2025, spanning 6 technology areas.

What is Dakang Holding Co., Ltd.'s Innovation Score?

Dakang Holding Co., Ltd. has an Innovation Score of 40.7 out of 100 (top 35% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Dakang Holding Co., Ltd.'s recent grant velocity is +13% 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 Dakang Holding Co., Ltd.'s patents?

Dakang Holding Co., Ltd.'s patents average 3.1 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 Dakang Holding 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

Dakang Holding Co., Ltd.

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

Dakang Holding Co., Ltd.'s top technology area is F21Y (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted) with 4 patents, ranking #460 of 1,359 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

USPTO PatentsView assignee record - 18 granted patents across 6 technology areas, recorded in grant years 2017–2025. 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: F21Y (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Dakang ranks #15,943 of 49,997 tracked US assignees by granted-patent volume, with 18 patents across 6 technology areas.

#15,943
of 49,997 US assignees by volume: Top 35%
by Innovation Score (40.7/100): 3.1
avg claims per patent: +13%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R15943 · Foreign Corporation #15,943 · 18 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MICRO 18 grants
MID-PACK #15,943/49,997
PHOTO-FINISH Cytiva US
CPC-NARROW F21Y · 6 areas
INNOV-PAR 40.7/100
CLAIMS-SPARSE 3.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +13% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Cytiva US 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 Dakang’s 40.7 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 10.2 pts (25%) Velocity 20.0 pts (49%) Breadth 8.7 pts (21%) Claim depth 1.8 pts (4%)

Qualcomm Incorporated · highest

85
Dakang Holding · this assignee

41
3D Lighting… · lowest

7

What this shows Dakang's Innovation Score is 40.7/100 (top 35% 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 Dakang?

Each dot is one of Dakang’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). Dakang’s own 3.1 claims/patent is at or below the 8.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Dakang's grants concentrate

Dakang Holding Co., Ltd. is a focused PatentsView assignee: 6 CPC subclasses with 22.2% of grants classified under F21Y (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted). Peak complete grant year is 2018 (6 grants) versus a trough of 1 in 2024. By volume, Dakang sits between Cytiva US LLC and Densbits Technologies Ltd..

Dakang's three-year grant acceleration

Dakang Holding Co., Ltd. shows 9 grants in 2022–2024 against only 0 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.

Cytiva US

18
Cytochip

18
Daher Aerospace

18
Daido Kogyo

18
DBV

18
DDK

18
Deepmotor

18
Densbits

18
Dakang Holding ◀

18

What this shows Dakang holds 18 patents at rank #15,942, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dakang

By rank, the assignees closest to #15,942 in granted patent volume.

Leaders in F21Y (Indexing Scheme Associated With Subclasses F21k)

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

Dakang's Innovation Score vs. every tracked assignee

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

41 Top 35% higher than 65% 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 · 2017–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Dakang Holding Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	2	11.1%
2018	6	33.3%
2022	5	27.8%
2023	3	16.7%
2024	1	5.6%
2025partial year	1	5.6%

Which technologies does Dakang Holding Co., Ltd. patent most?

F21Y - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted 4

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 4

A47C - CHAIRS; SOFAS; Beds 3

F21S - Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors 2

H04R - Loudspeakers, Microphones, Gramophone Pick-ups OR Like Acoustic Electromechanical TRANSDUCERS; Deaf-aid SETS; Public Address Systems 1

G02B - Optical Elements, Systems OR Apparatus 1

Top 6 of 6 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

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

Dakang Holding Co., Ltd.'s lead technology class is F21Y (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted), 22.2% of its portfolio - see every assignee active in that class. Explore F21Y
Ranked #15,943 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dakang Holding Co., Ltd. against Cytiva US LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 40.7/100 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.