USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Zhejiang Dahua Technology Co., Ltd.

USPTO PatentsView assignee record - 217 granted patents across 52 technology areas, active 2016–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H04N (PICTORIAL COMMUNICATION, e.g. TELEVISION).

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

Explore the portfolio See the ranking

217

Total patents granted

CPC technology areas

17.4

Avg claims per patent

+1773%

5-year filing velocity

The verdict

Zhejiang holds 217 US patents across 52 technology areas, rank #1,860 of 50,000 tracked assignees.

#1,860
of 50,000 US assignees by volume: Top 0.1%
by Innovation Score (70.6/100): 17.4
avg claims per patent: +1773%
filing velocity, last 5 yrs

Portfolio overview

Zhejiang Dahua Technology Co., Ltd. has been granted 217 US utility patents between 2016 and 2025, placing Zhejiang Dahua Technology Co., Ltd. at rank #1,860 across all assignees tracked by PlainPatent. This portfolio spans 52 distinct Cooperative Patent Classification (CPC) subclasses, averaging 17.4 claims per patent with primary concentration in H04N (PICTORIAL COMMUNICATION, e.g. TELEVISION). As a Foreign Corporation, Zhejiang Dahua Technology Co., Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Zhejiang sits between Microvention, Inc. (217 patents, rank #1,856) and Chicony Electronics Co., Ltd. (215 patents, rank #1,864) - the closest US assignees by grant volume. The composite Innovation Score of 70.6/100 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 206 grants, compared with 11 in the 2015–2019 window, a +1773% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. Zhejiang Dahua Technology Co., Ltd.'s 17.4 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 52 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Zhejiang Dahua Technology Co., Ltd. against peers pursuing similar technology classes.

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.

Zhejiang's Innovation Score vs. every tracked assignee

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

71 Top 1% higher than 99% 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 · 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%
2025	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

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Accelerating

Where it ranks

Overall rank by patents

#1,860

Across all tracked assignees

Innovation Score

70.6 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 Zhejiang Dahua Technology Co., Ltd. hold?

Zhejiang Dahua Technology Co., Ltd. holds 217 US granted patents filed 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. This composite metric weighs portfolio volume (40%), filing 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. The company has filed patents in 52 CPC subclasses total.

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

Zhejiang Dahua Technology Co., Ltd.'s recent filing velocity is +1773% compared to the prior five-year period. This indicates accelerating innovation.

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 falls within the standard range, providing solid legal coverage.

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.

How to use this portfolio

Zhejiang's 217 grants land it in the top 0.1% 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 - Zhejiang ranks #1,860 of 50,000. Top 50 holders
Most of this portfolio concentrates in H04N - see who else leads that technology area. H04N 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.