Where does Huaneng Clean Energy Research Institute rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Huaneng Clean Energy Research Institute ranks #19,875 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 Huaneng Clean Energy Research Institute hold?

Huaneng Clean Energy Research Institute holds 14 US utility patents granted between 2016 and 2025, spanning 26 technology areas.

What is Huaneng Clean Energy Research Institute's Innovation Score?

Huaneng Clean Energy Research Institute has an Innovation Score of 54.0 out of 100 (top 8% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Huaneng Clean Energy Research Institute's patent grant rate increasing or decreasing?

Huaneng Clean Energy Research Institute's recent grant velocity is +700% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Huaneng Clean Energy Research Institute's patents?

Huaneng Clean Energy Research Institute's patents average 11.1 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 Huaneng Clean Energy Research Institute 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

Huaneng Clean Energy Research Institute

Q: What technology areas does Huaneng Clean Energy Research Institute focus on?

Huaneng Clean Energy Research Institute's top technology area is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution) with 7 patents, ranking #1,663 of 5,963 assignees active in that subclass. Grants appear in 26 CPC subclasses total.

USPTO PatentsView assignee record - 14 granted patents across 26 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: Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Huaneng ranks #19,875 of 49,997 tracked US assignees by granted-patent volume, with 14 patents across 26 technology areas.

#19,875
of 49,997 US assignees by volume: Top 8%
by Innovation Score (54.0/100): 11.1
avg claims per patent: +700%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R19875 · Foreign Corporation #19,875 · 14 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 14 grants
MID-PACK #19,875/49,997
PHOTO-FINISH Hangzhou MPS…
CPC-FOCUS Y02E · 26 areas
INNOV-PAR 54.0/100
CLAIMS-PAR 11.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +700% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Hangzhou MPS Semiconductor Technology, Ltd. (±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 Huaneng’s 54.0 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 9.4 pts (17%) Velocity 20.0 pts (37%) Breadth 18.0 pts (33%) Claim depth 6.6 pts (12%)

Qualcomm Incorporated · highest

85
Huaneng Clean… · this assignee

54
3D Lighting… · lowest

7

What this shows Huaneng's Innovation Score is 54.0/100 (top 8% 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 Huaneng?

Each dot is one of Huaneng’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). Huaneng’s own 11.1 claims/patent is at or below the 16.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Huaneng's grants concentrate

Huaneng Clean Energy Research Institute is a focused PatentsView assignee: 26 CPC subclasses with 50% of grants classified under Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution). Peak complete grant year is 2024 (5 grants) versus a trough of 1 in 2016. By volume, Huaneng sits between HK Army Inc. and Hangzhou Silicon-Magic Semiconductor Technology Co., Ltd..

Huaneng's three-year grant acceleration

Huaneng Clean Energy Research Institute shows 8 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.

HK Army

14
Hoffmann Neopac

14
Horiba Jobin Yvon…

14
Howmet

14
Hydra-electric

14
Hznp

14
Hangzhou MPS Semi…

14
Hangzhou Silicon-…

14
Huaneng Clean Ene… ◀

14

What this shows Huaneng holds 14 patents at rank #19,854, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Huaneng

By rank, the assignees closest to #19,854 in granted patent volume.

Leaders in Y02E (Reduction OF Greenhouse GAS [GHG] Emissions)

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

Huaneng's Innovation Score vs. every tracked assignee

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

54 Top 8% higher than 92% 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

Huaneng Clean Energy Research Institute patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	7.1%
2023	3	21.4%
2024	5	35.7%
2025partial year	5	35.7%

Which technologies does Huaneng Clean Energy Research Institute patent most?

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 7

B01D - Separation 5

F23J - Removal OR Treatment OF Combustion Products OR Combustion RESIDUES; Flues 4

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 3

Y02A - Technologies FOR Adaptation TO Climate Change 3

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 2

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 2

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 2

H02S - Generation OF Electric Power BY Conversion OF Infrared Radiation, Visible Light OR Ultraviolet Light, e.g. Using Photovoltaic [PV] Modules 1

G05F - Systems FOR Regulating Electric OR Magnetic Variables 1

H10K - Organic Electric Solid-state Devices 1

C07C - Acyclic OR Carbocyclic Compounds 1

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 1

Y04S - Systems Integrating Technologies Related TO Power Network Operation, Communication OR Information Technologies FOR Improving THE Electrical Power Generation, Transmission, Distribution, Management OR Usage, i.e. Smart Grids 1

Y02C - Capture, Storage, Sequestration OR Disposal OF Greenhouse Gases [GHG] 1

Top 15 of 26 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

Huaneng Clean Energy Research Institute's patent record in context - here's where to go next.

Huaneng Clean Energy Research Institute's lead technology class is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution), 50% of its portfolio - see every assignee active in that class. Explore Y02E
Ranked #19,875 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Huaneng Clean Energy Research Institute against HK Army Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 54.0/100 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.