USPTO 2015–2025 USPTO PatentsView Foreign Corporation

CITY University OF HONG KONG

USPTO PatentsView assignee record - 646 granted patents across 232 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H01Q (ANTENNAS, i.e. RADIO AERIALS).

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

Explore the portfolio See the ranking

646

Total patents granted

232

CPC technology areas

18.9

Avg claims per patent

+109%

5-year filing velocity

The verdict

CITY holds 646 US patents across 232 technology areas, rank #701 of 50,000 tracked assignees.

#701
of 50,000 US assignees by volume: Top 1%
by Innovation Score (67.5/100): 18.9
avg claims per patent: +109%
filing velocity, last 5 yrs

Portfolio overview

CITY University OF HONG KONG has been granted 646 US utility patents between 2015 and 2025, placing CITY University OF HONG KONG at rank #701 across all assignees tracked by PlainPatent. This portfolio spans 232 distinct Cooperative Patent Classification (CPC) subclasses, averaging 18.9 claims per patent with primary concentration in H01Q (ANTENNAS, i.e. RADIO AERIALS). As a Foreign Corporation, CITY University OF HONG KONG is one of the broader-portfolio assignees in the PatentsView dataset. By volume, CITY sits between TIME Warner Cable Enterprises Llc (651 patents, rank #697) and Siemens Energy, Inc. (645 patents, rank #705) - the closest US assignees by grant volume. The composite Innovation Score of 67.5/100 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 437 grants, compared with 209 in the 2015–2019 window, a +109% 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. CITY University OF HONG KONG's 18.9 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark CITY University OF HONG KONG against peers pursuing similar technology classes.

TIME Warner Cable…

651
Huawei Device

649
Mitsui Chemicals

649
Continental Autom…

648
Goertek

646
Palo Alto Networks

646
CITY University O… ◀

646
GS Yuasa Internat…

645
Siemens Energy

645

What this shows CITY holds 646 patents at rank #701, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near CITY

By rank, the assignees closest to #701 in granted patent volume.

Leaders in H01Q (Antennas)

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

CITY's Innovation Score vs. every tracked assignee

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

68 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 · 2015–2025

Grants by year

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

View data table

CITY University OF HONG KONG patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	33	5.1%
2016	44	6.8%
2017	44	6.8%
2018	39	6.0%
2019	49	7.6%
2020	55	8.5%
2021	79	12.2%
2022	77	11.9%
2023	69	10.7%
2024	96	14.9%
2025	61	9.4%

Which technologies does CITY University OF HONG KONG patent most?

H01Q - ANTENNAS, i.e. RADIO AERIALS 74

G06F - ELECTRIC DIGITAL DATA PROCESSING 65

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 58

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 47

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 39

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 36

G06T - IMAGE DATA PROCESSING OR GENERATION, IN GENERAL 34

H04N - PICTORIAL COMMUNICATION, e.g. TELEVISION 28

A61B - DIAGNOSIS; SURGERY; IDENTIFICATION 26

A61P - SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS 25

H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 24

H02M - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 22

G06N - COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS 21

C12N - MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA 21

C23C - COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 20

Top 15 of 232 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Diversified

Claim Depth Standard

Velocity Accelerating

Where it ranks

Overall rank by patents

#701

Across all tracked assignees

Innovation Score

67.5 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 CITY University OF HONG KONG hold?

CITY University OF HONG KONG holds 646 US granted patents filed between 2015 and 2025, spanning 232 technology areas.

What is CITY University OF HONG KONG's Innovation Score?

CITY University OF HONG KONG has an Innovation Score of 67.5 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does CITY University OF HONG KONG focus on?

CITY University OF HONG KONG's top technology area is H01Q (ANTENNAS, i.e. RADIO AERIALS) with 74 patents. The company has filed patents in 232 CPC subclasses total.

Is CITY University OF HONG KONG's patent filing rate increasing or decreasing?

CITY University OF HONG KONG's recent filing velocity is +109% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for CITY University OF HONG KONG's patents?

CITY University OF HONG KONG's patents average 18.9 claims each. This falls within the standard range, providing solid legal coverage.

How is the CITY University OF HONG KONG 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

CITY's 646 grants land it in the top 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 - CITY ranks #701 of 50,000. Top 50 holders
Most of this portfolio concentrates in H01Q - see who else leads that technology area. H01Q 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.