Where does Dagang OIL Field Company OF Cnpc rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dagang OIL Field Company OF Cnpc ranks #46,017 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 Dagang OIL Field Company OF Cnpc hold?

Dagang OIL Field Company OF Cnpc holds 5 US utility patents granted between 2019 and 2022, spanning 4 technology areas.

What is Dagang OIL Field Company OF Cnpc's Innovation Score?

Dagang OIL Field Company OF Cnpc has an Innovation Score of 19.3 out of 100 (6th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Dagang OIL Field Company OF Cnpc focus on?

Dagang OIL Field Company OF Cnpc's top technology area is G01V (GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags) with 3 patents, ranking #273 of 835 assignees active in that subclass. Grants appear in 4 CPC subclasses total.

Is Dagang OIL Field Company OF Cnpc's patent grant rate increasing or decreasing?

Dagang OIL Field Company OF Cnpc's recent grant velocity is +300% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Dagang OIL Field Company OF Cnpc's patents?

Dagang OIL Field Company OF Cnpc's patents average 7.2 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 Dagang OIL Field Company OF Cnpc 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

Dagang OIL Field Company OF Cnpc

USPTO PatentsView assignee record - 5 granted patents across 4 technology areas, recorded in grant years 2019–2022. 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: G01V (GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Dagang ranks #46,017 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 4 technology areas.

#46,017
of 49,997 US assignees by volume: 6th percentile
by Innovation Score (19.3/100): 7.2
avg claims per patent: +300%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R46017 · Foreign Corporation #46,017 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-LOW · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #46,017/49,997
PHOTO-FINISH D Western Therapeuti…
CPC-NARROW G01V · 4 areas
INNOV-LOW 19.3/100
CLAIMS-SPARSE 7.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +300% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: D. Western Therapeutics Institute, Inc. (±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 Dagang’s 19.3 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 6.2 pts (32%) Velocity 1.7 pts (9%) Breadth 7.1 pts (37%) Claim depth 4.3 pts (22%)

Qualcomm Incorporated · highest

85
Dagang OIL Field OF… · this assignee

19
3D Lighting… · lowest

7

What this shows Dagang's Innovation Score is 19.3/100 (6th percentile 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 Dagang?

Each dot is one of Dagang’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). Dagang’s own 7.2 claims/patent is at or below the 9.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Dagang's grants concentrate

Dagang OIL Field Company OF Cnpc is a focused PatentsView assignee: 4 CPC subclasses with 60% of grants classified under G01V (GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags). Peak complete grant year is 2021 (2 grants) versus a trough of 1 in 2019. By volume, Dagang sits between D. Western Therapeutics Institute, Inc. and Daklapack Europe B.V..

Dagang's three-year grant acceleration

Dagang OIL Field Company OF Cnpc shows 1 grants in 2022–2024 against only 4 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.

D Western Therape…

5
D8ai

5
Daemo Engineering

5
Daewon Industry

5
Dai-ichi Dentsu

5
Dainihon Jochugiku

5
Daisen

5
Daklapack Europe…

5
Dagang OIL Field… ◀

5

What this shows Dagang holds 5 patents at rank #46,020, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dagang

By rank, the assignees closest to #46,020 in granted patent volume.

Leaders in G01V (Geophysics)

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

Dagang's Innovation Score vs. every tracked assignee

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

19 6th percentile higher than 6% 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 · 2019–2022

Grants by year

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

View data table

Dagang OIL Field Company OF Cnpc patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	20.0%
2020	1	20.0%
2021	2	40.0%
2022	1	20.0%

Which technologies does Dagang OIL Field Company OF Cnpc patent most?

G01V - GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags 3

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 3

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

Y02A - Technologies FOR Adaptation TO Climate Change 1

Top 4 of 4 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

Dagang OIL Field Company OF Cnpc's patent record in context - here's where to go next.

Dagang OIL Field Company OF Cnpc's lead technology class is G01V (GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags), 60% of its portfolio - see every assignee active in that class. Explore G01V
Ranked #46,017 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dagang OIL Field Company OF Cnpc against D. Western Therapeutics Institute, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 19.3/100 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.