Where does C Series Aircraft Limited Partnership rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), C Series Aircraft Limited Partnership ranks #19,550 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 C Series Aircraft Limited Partnership hold?

C Series Aircraft Limited Partnership holds 14 US utility patents granted between 2017 and 2023, spanning 22 technology areas.

What is C Series Aircraft Limited Partnership's Innovation Score?

C Series Aircraft Limited Partnership has an Innovation Score of 38.1 out of 100 (top 41% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is C Series Aircraft Limited Partnership's patent grant rate increasing or decreasing?

C Series Aircraft Limited Partnership's recent grant velocity is -60% 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 C Series Aircraft Limited Partnership's patents?

C Series Aircraft Limited Partnership's patents average 19.4 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 C Series Aircraft Limited Partnership 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

C Series Aircraft Limited Partnership

Q: What technology areas does C Series Aircraft Limited Partnership focus on?

C Series Aircraft Limited Partnership'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 8 patents, ranking #191 of 799 assignees active in that subclass. Grants appear in 22 CPC subclasses total.

USPTO PatentsView assignee record - 14 granted patents across 22 technology areas, recorded in grant years 2017–2023. 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

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, C ranks #19,550 of 49,997 tracked US assignees by granted-patent volume, with 14 patents across 22 technology areas.

#19,550
of 49,997 US assignees by volume: Top 41%
by Innovation Score (38.1/100): 19.4
avg claims per patent: -60%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R19550 · Foreign Corporation #19,550 · 14 grants

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

GRANTS-MICRO 14 grants
MID-PACK #19,550/49,997
PHOTO-FINISH Build IP
CPC-FOCUS B64D · 22 areas
INNOV-THIN 38.1/100
CLAIMS-RICH 19.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -60% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Build IP 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 C’s 38.1 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 (25%) Velocity 0.6 pts (2%) Breadth 16.6 pts (43%) Claim depth 11.7 pts (31%)

Qualcomm Incorporated · highest

85
C Series Aircraft… · this assignee

38
3D Lighting… · lowest

7

What this shows C's Innovation Score is 38.1/100 (top 41% 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 C?

Each dot is one of C’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). C’s own 19.4 claims/patent is ABOVE the 12.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where C's grants concentrate

C Series Aircraft Limited Partnership is a focused PatentsView assignee: 22 CPC subclasses with 57.1% 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 2019 (9 grants) versus a trough of 1 in 2017. By volume, C sits between Build IP LLC and CAE Healthcare Canada Inc..

C's three-year grant acceleration

C Series Aircraft Limited Partnership shows 1 grants in 2022–2024 against only 12 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.

Build IP

14
Bullhead Innovati…

14
Busy Baby

14
BÜRkert Werke & KG

14
C&A Marketing

14
C-eng

14
C6 AS

14
CAE Healthcare Ca…

14
C Series Aircraft… ◀

14

What this shows C holds 14 patents at rank #19,549, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near C

By rank, the assignees closest to #19,549 in granted patent volume.

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

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

C's Innovation Score vs. every tracked assignee

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

38 Top 41% higher than 59% 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 · 2017–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

C Series Aircraft Limited Partnership patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	7.1%
2019	9	64.3%
2020	3	21.4%
2023	1	7.1%

Which technologies does C Series Aircraft Limited Partnership patent most?

B64D - Equipment FOR Fitting IN OR TO AIRCRAFT; Flight SUITS; PARACHUTES; Arrangement OR Mounting OF Power Plants OR Propulsion Transmissions IN Aircraft 8

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 4

Y02T - Climate Change Mitigation Technologies Related TO Transportation 3

G06F - Electric Digital Data Processing 2

G01D - Measuring NOT Specially Adapted FOR A Specific VARIABLE; Arrangements FOR Measuring TWO OR More Variables NOT Covered IN A Single Other SUBCLASS; Tariff Metering APPARATUS; Measuring OR Testing NOT Otherwise Provided FOR 2

G01C - Measuring Distances, Levels OR BEARINGS; SURVEYING; NAVIGATION; Gyroscopic INSTRUMENTS; Photogrammetry OR Videogrammetry 2

F05D - Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants 2

F02C - Gas-turbine PLANTS; AIR Intakes FOR Jet-propulsion PLANTS; Controlling Fuel Supply IN Air-breathing Jet-propulsion Plants 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

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 2

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

B64C - AEROPLANES; Helicopters 1

F02K - Jet-propulsion Plants 1

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 1

G01B - Measuring Length, Thickness OR Similar Linear DIMENSIONS; Measuring ANGLES; Measuring AREAS; Measuring Irregularities OF Surfaces OR Contours 1

Top 15 of 22 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

C Series Aircraft Limited Partnership's patent record in context - here's where to go next.

C Series Aircraft Limited Partnership'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), 57.1% of its portfolio - see every assignee active in that class. Explore B64D
Ranked #19,550 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare C Series Aircraft Limited Partnership against Build IP LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 38.1/100 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.