Overall rank by patents
#2,848
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
PetroChina Company Limited
USPTO PatentsView assignee record — 135 granted patents across 49 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).
135
Total patents granted
49
CPC technology areas
13.5
Avg claims per patent
+155%
5-year filing velocity
The verdict
PetroChina holds 135 US patents across 49 technology areas — rank #2,848 of 50,000 tracked assignees.
- #2,848
- of 50,000 US assignees by volume
- Top 9%
- by Innovation Score (53.1/100)
- 13.5
- avg claims per patent
- +155%
- filing velocity, last 5 yrs
Portfolio overview
PetroChina Company Limited has been granted 135 US utility patents between 2015 and 2025, placing PetroChina Company Limited at rank #2,848 across all assignees tracked by PlainPatent. This portfolio spans 49 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.5 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, PetroChina Company Limited is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 53.1/100 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 97 grants, compared with 38 in the 2015–2019 window — a +155% 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. PetroChina Company Limited's 13.5 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 49 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark PetroChina Company Limited against peers pursuing similar technology classes.
How does PetroChina compare?
Granted US patents 2015–2025 versus the largest corporate holders — this company marked ◀
- Samsung
SAMSUNG ELECTRONICS CO., LTD.
106,890 patents
- International Bus…
International Business Machines Corporation
72,926 patents
- Canon 34,378
Canon Kabushiki Kaisha
34,378 patents
- LG 32,607
LG ELECTRONICS INC.
32,607 patents
- Taiwan Semiconduc… 31,041
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
31,041 patents
- Apple 30,560
Apple Inc.
30,560 patents
- Qualcomm Incorpor… 30,354
QUALCOMM Incorporated
30,354 patents
- Intel 27,498
Intel Corporation
27,498 patents
- Petrochina ◀ 135
PetroChina Company Limited
135 patents
What this shows PetroChina holds 135 patents — placing it at rank #2,848 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.
PetroChina's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
53 Top 9% higher than 91% 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
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 2 | 1.5% |
| 2016 | 9 | 6.7% |
| 2017 | 12 | 8.9% |
| 2018 | 9 | 6.7% |
| 2019 | 6 | 4.4% |
| 2020 | 24 | 17.8% |
| 2021 | 38 | 28.1% |
| 2022 | 19 | 14.1% |
| 2023 | 6 | 4.4% |
| 2024 | 9 | 6.7% |
| 2025 | 1 | 0.7% |
Which technologies does PetroChina Company Limited patent most?
Top 15 of 49 technology areas
Patent Moat Analysis
Portfolio Volume Moderate
Tech Breadth Multi-domain
Claim Depth Standard
Velocity Accelerating
Frequently Asked Questions
How many patents does PetroChina Company Limited hold?
PetroChina Company Limited holds 135 US granted patents filed between 2015 and 2025, spanning 49 technology areas.
What is PetroChina Company Limited's Innovation Score?
PetroChina Company Limited has an Innovation Score of 53.1 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does PetroChina Company Limited focus on?
PetroChina 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 50 patents. The company has filed patents in 49 CPC subclasses total.
Is PetroChina Company Limited's patent filing rate increasing or decreasing?
PetroChina Company Limited's recent filing velocity is +155% compared to the prior five-year period. This indicates accelerating innovation.
What does claim depth mean for PetroChina Company Limited's patents?
PetroChina Company Limited's patents average 13.5 claims each. This falls within the standard range, providing solid legal coverage.
How is the PetroChina 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.
Learn More
Explore the patent dataset
E21B technology
PetroChina Company Limited's primary CPC class — all holders and yearly trends
Top 50 patent holders
See where PetroChina Company Limited ranks among the largest US patent assignees
All technology classes
Browse every CPC technology area by patent activity
How the score works
The four dimensions behind the Innovation Score
Related
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.
All federal data sources used on this page
- USPTO PatentsView — official U.S. Patent and Trademark Office bulk patent data. patentsview.org
- USPTO Patent Application Information Retrieval (PAIR) — application status and file history. uspto.gov/patents/pair
- USPTO Bulk Data Storage System — comprehensive patent text + claims dataset. bulkdata.uspto.gov
- USPTO CPC Classification — Cooperative Patent Classification scheme for technology categorization. uspto.gov/cpc
- SEC EDGAR — public filings cross-reference for assignee corporate entity matching. sec.gov/edgar
- WIPO PATENTSCOPE — international patent context (related international filings). wipo.int/patentscope
