Where does Air China Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Air China Limited ranks #14,439 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 Air China Limited hold?

Air China Limited holds 20 US utility patents granted between 2015 and 2021, spanning 21 technology areas.

What is Air China Limited's Innovation Score?

Air China Limited has an Innovation Score of 37.3 out of 100 (top 44% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Air China Limited's patent grant rate increasing or decreasing?

Air China Limited's recent grant velocity is -82% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Air China Limited's patents?

Air China Limited's patents average 17.7 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 Air China Limited 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

Air China Limited

Q: What technology areas does Air China Limited focus on?

Air China Limited's top technology area is B64D (Equipment FOR Fitting IN OR TO AIRCRAFT; Flight SUITS; PARACHUTES; Arrangement OR Mounting OF Power Plants OR Propulsion Transmissions IN Aircraft) with 10 patents, ranking #157 of 799 assignees active in that subclass. Grants appear in 21 CPC subclasses total.

USPTO PatentsView assignee record - 20 granted patents across 21 technology areas, recorded in grant years 2015–2021. 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: B64D (Equipment FOR Fitting IN OR TO AIRCRAFT; Flight SUITS; PARACHUTES; Arrangement OR Mounting OF Power Plants OR Propulsion Transmissions IN Aircraft).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Air ranks #14,439 of 49,997 tracked US assignees by granted-patent volume, with 20 patents across 21 technology areas.

#14,439
of 49,997 US assignees by volume: Top 44%
by Innovation Score (37.3/100): 17.7
avg claims per patent: -82%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R14439 · Foreign Corporation #14,439 · 20 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 20 grants
MID-PACK #14,439/49,997
PHOTO-FINISH Advanced Refining
CPC-FOCUS B64D · 21 areas
INNOV-THIN 37.3/100
CLAIMS-RICH 17.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -82% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Advanced Refining Technologies 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 Air’s 37.3 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 10.5 pts (28%) Velocity 0.0 pts (0%) Breadth 16.2 pts (43%) Claim depth 10.6 pts (28%)

Qualcomm Incorporated · highest

85
Air China · this assignee

37
3D Lighting… · lowest

7

What this shows Air's Innovation Score is 37.3/100 (top 44% 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 Air?

Each dot is one of Air’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). Air’s own 17.7 claims/patent is ABOVE the 17.1 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Air's grants concentrate

Air China Limited is a focused PatentsView assignee: 21 CPC subclasses with 50% of grants classified under B64D (Equipment FOR Fitting IN OR TO AIRCRAFT; Flight SUITS; PARACHUTES; Arrangement OR Mounting OF Power Plants OR Propulsion Transmissions IN Aircraft). Peak complete grant year is 2017 (8 grants) versus a trough of 1 in 2018. By volume, Air sits between Advanced Refining Technologies LLC and Akston Biosciences Corporation.

Advanced Refining

20
Advanced Scientif…

20
Advaxis

20
Aicuris & KG

20
Airstrip IP Holdi…

20
Airgas

20
Akron Brass

20
Akston Biosciences

20
Air China ◀

20

What this shows Air holds 20 patents at rank #14,457, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Air

By rank, the assignees closest to #14,457 in granted patent volume.

Leaders in B64D (Equipment FOR Fitting IN OR TO Aircraft)

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

Air's Innovation Score vs. every tracked assignee

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

37 Top 44% higher than 56% 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 · 2015–2021

Grants by year

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

View data table

Air China Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	10.0%
2016	5	25.0%
2017	8	40.0%
2018	1	5.0%
2019	1	5.0%
2020	2	10.0%
2021	1	5.0%

Which technologies does Air China Limited patent most?

B64D - Equipment FOR Fitting IN OR TO AIRCRAFT; Flight SUITS; PARACHUTES; Arrangement OR Mounting OF Power Plants OR Propulsion Transmissions IN Aircraft 10

G07C - Time OR Attendance REGISTERS; Registering OR Indicating THE Working OF MACHINES; Generating Random NUMBERS; Voting OR Lottery APPARATUS; Arrangements, Systems OR Apparatus FOR Checking NOT Provided FOR Elsewhere 6

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 6

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 5

F05D - Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants 5

F02C - Gas-turbine PLANTS; AIR Intakes FOR Jet-propulsion PLANTS; Controlling Fuel Supply IN Air-breathing Jet-propulsion Plants 4

B64F - Ground OR Aircraft-carrier-deck Installations Specially Adapted FOR USE IN Connection With AIRCRAFT; Designing, Manufacturing, Assembling, Cleaning, Maintaining OR Repairing Aircraft, NOT Otherwise Provided FOR; Handling, Transporting, Testing OR Inspecting Aircraft Components, NOT Otherwise Provide 4

Y02T - Climate Change Mitigation Technologies Related TO Transportation 4

G06Q - Information AND Communication Technology [ICT] Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory PURPOSES; Systems OR Methods Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory Purposes, NOT Otherwise Provided FOR 3

F01D - Non-positive Displacement Machines OR Engines, e.g. Steam Turbines 3

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 3

F01M - Lubricating OF Machines OR Engines IN GENERAL; Lubricating Internal Combustion ENGINES; Crankcase Ventilating 3

G08G - Traffic Control Systems 2

F02N - Starting OF Combustion ENGINES; Starting Aids FOR Such Engines, NOT Otherwise Provided FOR 1

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 1

Top 15 of 21 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

Air China Limited's patent record in context - here's where to go next.

Air China Limited's lead technology class is B64D (Equipment FOR Fitting IN OR TO AIRCRAFT; Flight SUITS; PARACHUTES; Arrangement OR Mounting OF Power Plants OR Propulsion Transmissions IN Aircraft), 50% of its portfolio - see every assignee active in that class. Explore B64D
Ranked #14,439 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Air China Limited against Advanced Refining Technologies LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 37.3/100 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.