Where does Zhejiang Dahua Technology Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zhejiang Dahua Technology Co., Ltd. ranks #1,860 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 Zhejiang Dahua Technology Co., Ltd. hold?

Zhejiang Dahua Technology Co., Ltd. holds 217 US utility patents granted between 2016 and 2025, spanning 52 technology areas.

What is Zhejiang Dahua Technology Co., Ltd.'s Innovation Score?

Zhejiang Dahua Technology Co., Ltd. has an Innovation Score of 70.6 out of 100 (top 1% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Zhejiang Dahua Technology Co., Ltd. focus on?

Zhejiang Dahua Technology Co., Ltd.'s top technology area is H04N (Pictorial Communication, e.g. Television) with 131 patents, ranking #171 of 5,951 assignees active in that subclass. Grants appear in 52 CPC subclasses total.

Is Zhejiang Dahua Technology Co., Ltd.'s patent grant rate increasing or decreasing?

Zhejiang Dahua Technology Co., Ltd.'s recent grant velocity is +1518% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Zhejiang Dahua Technology Co., Ltd.'s patents?

Zhejiang Dahua Technology Co., Ltd.'s patents average 17.4 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 Zhejiang Dahua 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Zhejiang Dahua Technology Co., Ltd.

USPTO PatentsView assignee record - 217 granted patents across 52 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: H04N (Pictorial Communication, e.g. Television).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Zhejiang ranks #1,860 of 49,997 tracked US assignees by granted-patent volume, with 217 patents across 52 technology areas.

#1,860
of 49,997 US assignees by volume: Top 1%
by Innovation Score (70.6/100): 17.4
avg claims per patent: +1518%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1860 · Foreign Corporation #1,860 · 217 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MID 217 grants
TOP-DECILE #1,860/49,997
PHOTO-FINISH MicroVention
CPC-WIDE H04N · 52 areas
INNOV-STRONG 70.6/100
CLAIMS-RICH 17.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +1518% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: MicroVention, 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 Zhejiang’s 70.6 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 18.6 pts (26%) Velocity 16.5 pts (23%) Breadth 25.0 pts (35%) Claim depth 10.4 pts (15%)

Qualcomm Incorporated · highest

85
Chengdu Qinchuan… · near

71
Textron Innovations · near

71
Toshiba · near

71
Volvo Truck · near

71
Zhejiang Dahua… · this assignee

71
3D Lighting… · lowest

7

What this shows Zhejiang's Innovation Score is 70.6/100 (top 1% 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 Zhejiang?

Each dot is one of Zhejiang’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). Zhejiang’s own 17.4 claims/patent is ABOVE the 15.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

How Zhejiang's grant cadence moved

Between 2020–2024, Zhejiang Dahua Technology Co., Ltd. received 178 grants versus 11 in 2015–2019 (+1518% equal-window velocity, top decile growth). Across complete PatentsView years, output peaked in 2024 at 52 grants and bottomed in 2017 at 2. Lead class H04N accounts for 60.4% of the portfolio across 52 subclasses. Volume neighbours: MicroVention, Inc. (#1,856) and Chicony Electronics Co., Ltd. (#1,864).

Zhejiang's three-year grant acceleration

From 2019–2021 to 2022–2024, Zhejiang Dahua Technology Co., Ltd. moved from 52 to 129 grants (2.48x 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 #119. See the growth leaderboard.

Microvention

217
Newracom

217
Solarcity

217
Xi'an Jiaotong Un…

217
Zhejiang Dahua Te… ◀

217
AT&S Austria & Sy…

216
Egalax_empia Tech…

216
Pantech

216
Chicony

215

What this shows Zhejiang holds 217 patents at rank #1,860, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Zhejiang

By rank, the assignees closest to #1,860 in granted patent volume.

Leaders in H04N (Pictorial Communication)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Zhejiang, neither rank-band nor same-CPC leaders (those blocks stay above). In H04N (Pictorial Communication), Zhejiang ranks #171 of 5,951 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (71 here).

Chengdu Qinchuan IOT Technology Co., Ltd. 71 Volvo Truck Corporation 71 Textron Innovations Inc. 71 Kabushiki Kaisha Toshiba 71

Similar claim depth

Nearest assignees by average claims per patent (17.4 here).

EchoStar Technologies L.L.C. 17.4 avg Bundesdruckerei GMBH 17.4 avg Evalve, Inc. 17.4 avg Trumpf Laser- UND Systemtechnik GMBH 17.4 avg

Zhejiang's Innovation Score vs. every tracked assignee

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

71 Top 1% higher than 99% 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

Zhejiang Dahua Technology Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	4	1.8%
2017	2	0.9%
2018	2	0.9%
2019	3	1.4%
2020	13	6.0%
2021	36	16.6%
2022	36	16.6%
2023	41	18.9%
2024	52	24.0%
2025partial year	28	12.9%

Which technologies does Zhejiang Dahua Technology Co., Ltd. patent most?

H04N - Pictorial Communication, e.g. Television 131

G06T - Image Data Processing OR Generation, IN General 62

G06V - Image OR Video Recognition OR Understanding 53

G06F - Electric Digital Data Processing 39

G08B - Signalling OR Calling SYSTEMS; Order TELEGRAPHS; Alarm Systems 18

G03B - Apparatus OR Arrangements FOR Taking Photographs OR FOR Projecting OR Viewing THEM; Apparatus OR Arrangements Employing Analogous Techniques Using Waves Other Than Optical WAVES; Accessories Therefor 18

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 14

G02B - Optical Elements, Systems OR Apparatus 12

G06N - Computing Arrangements Based ON Specific Computational Models 8

G08G - Traffic Control Systems 8

H04W - Wireless Communication Networks 6

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 5

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 4

H04M - Telephonic Communication 4

G11B - Information Storage Based ON Relative Movement Between Record Carrier AND Transducer 4

Top 15 of 52 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

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

Zhejiang Dahua Technology Co., Ltd.'s lead technology class is H04N (Pictorial Communication, e.g. Television), 60.4% of its portfolio - see every assignee active in that class. Explore H04N
Ranked #1,860 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zhejiang Dahua Technology Co., Ltd. against MicroVention, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 70.6/100 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.