USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Southwest Petroleum University

USPTO PatentsView assignee record - 307 granted patents across 99 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: E21B (EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

307

Total patents granted

CPC technology areas

7.7

Avg claims per patent

+981%

5-year filing velocity

The verdict

Southwest holds 307 US patents across 99 technology areas, rank #1,364 of 50,000 tracked assignees.

#1,364
of 50,000 US assignees by volume: Top 2%
by Innovation Score (62.9/100): 7.7
avg claims per patent: +981%
filing velocity, last 5 yrs

Portfolio overview

Southwest Petroleum University has been granted 307 US utility patents between 2015 and 2025, placing Southwest Petroleum University at rank #1,364 across all assignees tracked by PlainPatent. This portfolio spans 99 distinct Cooperative Patent Classification (CPC) subclasses, averaging 7.7 claims per patent with primary concentration in E21B (EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS). As a Foreign Corporation, Southwest Petroleum University is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Southwest sits between Twilio Inc. (309 patents, rank #1,360) and Bissell Inc. (306 patents, rank #1,368) - the closest US assignees by grant volume. The composite Innovation Score of 62.9/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 281 grants, compared with 26 in the 2015–2019 window, a +981% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Southwest Petroleum University's 7.7 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 99 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Southwest Petroleum University against peers pursuing similar technology classes.

Twilio

309
Shanghai Jiao Ton…

308
Certainteed

307
Naver

307
The Chinese Unive…

307
Verizon Media

307
Southwest Petrole… ◀

307
ALFA Laval Corpor…

306
Bissell

306

What this shows Southwest holds 307 patents at rank #1,364, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Southwest

By rank, the assignees closest to #1,364 in granted patent volume.

Leaders in E21B (Earth OR ROCK Drilling)

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

Southwest's Innovation Score vs. every tracked assignee

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

63 Top 2% higher than 98% of 50,000 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 · 2015–2025

Grants by year

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

View data table

Southwest Petroleum University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	1.0%
2016	2	0.7%
2017	1	0.3%
2018	4	1.3%
2019	16	5.2%
2020	26	8.5%
2021	44	14.3%
2022	56	18.2%
2023	64	20.8%
2024	54	17.6%
2025	37	12.1%

Which technologies does Southwest Petroleum University patent most?

E21B - EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS 177

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 87

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 75

G06F - ELECTRIC DIGITAL DATA PROCESSING 23

G01V - GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 20

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 16

Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE 15

C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 15

C04B - LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE ; CERAMICS ; REFRACTORIES; TREATMENT OF NATURAL STONE 14

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 10

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 8

G01M - TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR 8

F16L - PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL 8

B01D - SEPARATION 6

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 6

Top 15 of 99 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#1,364

Across all tracked assignees

Innovation Score

62.9 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Southwest Petroleum University hold?

Southwest Petroleum University holds 307 US granted patents filed between 2015 and 2025, spanning 99 technology areas.

What is Southwest Petroleum University's Innovation Score?

Southwest Petroleum University has an Innovation Score of 62.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Southwest Petroleum University focus on?

Southwest Petroleum University'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 177 patents. The company has filed patents in 99 CPC subclasses total.

Is Southwest Petroleum University's patent filing rate increasing or decreasing?

Southwest Petroleum University's recent filing velocity is +981% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Southwest Petroleum University's patents?

Southwest Petroleum University's patents average 7.7 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Southwest Petroleum University 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.

How to use this portfolio

Southwest's 307 grants land it in the top 2% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Southwest ranks #1,364 of 50,000. Top 50 holders
Most of this portfolio concentrates in E21B - see who else leads that technology area. E21B leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.