Where does Sinopec Southwest OIL & GAS Company rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sinopec Southwest OIL & GAS Company ranks #43,126 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 Sinopec Southwest OIL & GAS Company hold?

Sinopec Southwest OIL & GAS Company holds 6 US utility patents granted between 2021 and 2025, spanning 2 technology areas.

What is Sinopec Southwest OIL & GAS Company's Innovation Score?

Sinopec Southwest OIL & GAS Company has an Innovation Score of 40.4 out of 100 (top 36% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Sinopec Southwest OIL & GAS Company's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Sinopec Southwest OIL & GAS Company.

What does claim depth mean for Sinopec Southwest OIL & GAS Company's patents?

Sinopec Southwest OIL & GAS Company's patents average 14.5 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 Sinopec Southwest OIL & GAS Company 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

Sinopec Southwest OIL & GAS Company

Q: What technology areas does Sinopec Southwest OIL & GAS Company focus on?

Sinopec Southwest OIL & GAS Company'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 6 patents. Grants appear in 2 CPC subclasses total.

USPTO PatentsView assignee record - 6 granted patents across 2 technology areas, recorded in grant years 2021–2025. 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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The verdict

According to USPTO PatentsView, Sinopec ranks #43,126 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 2 technology areas.

#43,126
of 49,997 US assignees by volume: Top 36%
by Innovation Score (40.4/100): 14.5
avg claims per patent

USPTO PatentsView assignee plate

Corpus R43126 · Foreign Corporation #43,126 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 6 grants
LOWER-Q #43,126/49,997
PHOTO-FINISH Sino Canada Health…
CPC-NARROW E21B · 2 areas
INNOV-PAR 40.4/100
CLAIMS-RICH 14.5 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Sino Canada Health Engineering Research Institute (HEFEI) 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.

Qualcomm Incorporated · highest

85
Sinopec Southwest… · this assignee

40
3D Lighting… · lowest

7

What this shows Sinopec's Innovation Score is 40.4/100 (top 36% 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.

Where Sinopec's grants concentrate

Sinopec Southwest OIL & GAS Company is a focused PatentsView assignee: 2 CPC subclasses with 100% 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 2022 (2 grants) versus a trough of 1 in 2021. By volume, Sinopec sits between Sino Canada Health Engineering Research Institute (HEFEI) Ltd. and Siteone Therapeutics, Inc..

Sinopec's three-year grant acceleration

Sinopec Southwest OIL & GAS Company shows 4 grants in 2022–2024 against only 1 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.

Sino Canada Healt…

6
Sinopec Dalian Re…

6
Sinopec Petroleum…

6
Sinopec Petroleum…

6
Sintratec

6
Sipra Patententwi…

6
Sirman S P A

6
Siteone Therapeut…

6
Sinopec Southwest… ◀

6

What this shows Sinopec holds 6 patents at rank #42,907, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sinopec

By rank, the assignees closest to #42,907 in granted patent volume.

Leaders in E21B (Earth OR Rock Drilling)

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

Sinopec's Innovation Score vs. every tracked assignee

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

40 Top 36% higher than 64% 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 · 2021–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

Sinopec Southwest OIL & GAS Company patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	1	16.7%
2022	2	33.3%
2024	2	33.3%
2025partial year	1	16.7%

Which technologies does Sinopec Southwest OIL & GAS Company patent most?

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 6

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 1

Top 2 of 2 technology areas

Where it ranks

Overall rank by patents

#43,126

of 49,997 tracked assignees

Innovation Score

40.4 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Sinopec Southwest OIL & GAS Company's patent record in context - here's where to go next.

Sinopec Southwest OIL & GAS Company'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), 100% of its portfolio - see every assignee active in that class. Explore E21B
Ranked #43,126 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sinopec Southwest OIL & GAS Company against Sino Canada Health Engineering Research Institute (HEFEI) Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 40.4/100 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.