Where does Cnpc Chuanqing Drilling Engineering Company Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Cnpc Chuanqing Drilling Engineering Company Limited ranks #34,794 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

What is Cnpc Chuanqing Drilling Engineering Company Limited's Innovation Score?

Cnpc Chuanqing Drilling Engineering Company Limited has an Innovation Score of 46.0 out of 100 (top 22% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Cnpc Chuanqing Drilling Engineering Company Limited's patent grant rate increasing or decreasing?

Cnpc Chuanqing Drilling Engineering Company Limited's recent grant velocity is +400% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Cnpc Chuanqing Drilling Engineering Company Limited's patents?

Cnpc Chuanqing Drilling Engineering Company Limited's patents average 15.9 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Cnpc Chuanqing Drilling Engineering Company Limited

Q: How many patents does Cnpc Chuanqing Drilling Engineering Company Limited hold?

Cnpc Chuanqing Drilling Engineering Company Limited holds 7 US utility patents granted between 2018 and 2025, spanning 7 technology areas.

Q: What technology areas does Cnpc Chuanqing Drilling Engineering Company Limited focus on?

Cnpc Chuanqing Drilling Engineering Company Limited's top technology area is E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells) with 4 patents, ranking #774 of 1,363 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Q: How is the Cnpc Chuanqing Drilling Engineering Company 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 PatentsView assignee record - 7 granted patents across 7 technology areas, recorded in grant years 2018–2025. 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: E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Cnpc ranks #34,794 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 7 technology areas.

#34,794
of 49,997 US assignees by volume: Top 22%
by Innovation Score (46.0/100): 15.9
avg claims per patent: +400%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R34794 · Foreign Corporation #34,794 · 7 grants

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

GRANTS-MICRO 7 grants
MID-PACK #34,794/49,997
PHOTO-FINISH Cloudinary
CPC-NARROW E21B · 7 areas
INNOV-PAR 46.0/100
CLAIMS-RICH 15.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +400% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Cloudinary 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 Cnpc’s 46.0 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 7.2 pts (16%) Velocity 20.0 pts (43%) Breadth 9.4 pts (20%) Claim depth 9.5 pts (21%)

Qualcomm Incorporated · highest

85
Cnpc Chuanqing… · this assignee

46
3D Lighting… · lowest

7

What this shows Cnpc's Innovation Score is 46.0/100 (top 22% 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 Cnpc?

Each dot is one of Cnpc’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). Cnpc’s own 15.9 claims/patent is ABOVE the 14.1 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Cnpc's grants concentrate

Cnpc Chuanqing Drilling Engineering Company Limited is a focused PatentsView assignee: 7 CPC subclasses with 57.1% of grants classified under E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells). Peak complete grant year is 2023 (2 grants) versus a trough of 1 in 2018. By volume, Cnpc sits between Cloudinary Ltd. and Cold Chain, LLC.

Cnpc's three-year grant acceleration

Cnpc Chuanqing Drilling Engineering Company Limited shows 5 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.

Cloudinary

7
CM Visual Technol…

7
Cmblu Energy

7
CMC Biologics A/S

7
-tech Development

7
Codesys Holding

7
Cognos Therapeuti…

7
Cold Chain

7
Cnpc Chuanqing Dr… ◀

7

What this shows Cnpc holds 7 patents at rank #34,701, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Cnpc

By rank, the assignees closest to #34,701 in granted patent volume.

Leaders in E21B (Earth OR Rock Drilling)

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

Cnpc's Innovation Score vs. every tracked assignee

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

46 Top 22% higher than 78% 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 · 2018–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Cnpc Chuanqing Drilling Engineering Company Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	1	14.3%
2022	1	14.3%
2023	2	28.6%
2024	2	28.6%
2025partial year	1	14.3%

Which technologies does Cnpc Chuanqing Drilling Engineering Company Limited patent most?

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 4

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 2

G06F - Electric Digital Data Processing 1

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 1

G16C - Computational CHEMISTRY; CHEMOINFORMATICS; Computational Materials Science 1

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 1

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 1

Top 7 of 7 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

Cnpc Chuanqing Drilling Engineering Company Limited's patent record in context - here's where to go next.

Cnpc Chuanqing Drilling Engineering Company Limited's lead technology class is E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells), 57.1% of its portfolio - see every assignee active in that class. Explore E21B
Ranked #34,794 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Cnpc Chuanqing Drilling Engineering Company Limited against Cloudinary Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 46.0/100 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.