INSIGHT 01Fact
31%
31% of applications are in Civil engineering
1,919 applications in this field, 1,882 of them in IPC E21B — the main axis of the portfolio.
Method: Field applications ÷ applications with IPC
Company patentsOil, gas and energy technology
COMPANY PATENT INTELLIGENCE
PetroChina Patent Portfolio Analysis
Explore exploration, production, refining and energy publications attributed to PetroChina Company Limited.
Partial name or date coverage · counts are lower boundsData as of 2026-10-29Data scope
- Search jurisdictions
- Worldwide
- Applicant-name basis
- Dataset-harmonized assignees (not verified current owners)
- Source search matches
- 6,110
- Published 2025-01-01 — 2025-12-31 · Source Google Patents
- Applicant names included in these statistics
- PETROCHINA CO LTD
- Publication dates collected
- Not recorded in this snapshot
- Reviewed names not covered
- PETROCHINA COMPANY LIMITED · 中国石油天然气股份有限公司
≥6,110docs
509 per month · peak 2025-05 (1,028)
Empty dashed outlines are uncollected periods, not zero. Dashed bars have partial name or date coverage.
01Key figures
- Applications
- 6,103
- By application number; publication and grant count once
- Invention
- 5,772
- 95% of applications
- Utility model
- 307
- 5% of applications
- Patent families
- 5,940
- By the source family ID
- Green technology
- —
- The source has no CPC codes
- Concentration
- 0.25HHI
- Sum of squared field shares; higher is more concentrated
INSIGHT 02Fact
34%
34% involve manufacturing and inspection
Measurement, machine tools, handling and chemical engineering together reach 2,087, mostly production-line, equipment and inspection filings.
Method: Four fields added ÷ all applications (fields may overlap)
INSIGHT 03Fact
5%
Utility models are 5%
307 utility models and 5,775 inventions. Structural and tooling improvements are often protected faster as utility models.
Method: Utility model documents ÷ all documents
02Technology landscape
6,101 applications with IPC codes are mapped to 35 fields using the WIPO IPC–Technology Concordance; area is the number of applications. Select a tile to see its IPC subclasses. An application can belong to several fields.
- Electrical engineering
- Instruments
- Chemistry
- Mechanical engineering
- Other fields
03Rhythm
Publications per month in each field; brighter cells mean more. It shows which directions surge in particular months.
This chart covers collected documents published from 2025-01-01 to 2025-12-31. Examination and publication processes affect this timing; it does not directly measure R&D investment in the same period.
| Technology field | 25-01 | 25-02 | 25-03 | 25-04 | 25-05 | 25-06 | 25-07 | 25-08 | 25-09 | 25-10 | 25-11 | 25-12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Civil engineering | 138 | 237 | 168 | 192 | 254 | 206 | 118 | 40 | 189 | 121 | 113 | 144 |
| Measurement | 73 | 184 | 151 | 127 | 195 | 142 | 41 | 27 | 144 | 116 | 93 | 106 |
| Computer technology | 70 | 192 | 152 | 127 | 185 | 134 | 50 | 18 | 148 | 105 | 87 | 97 |
| Basic materials chemistry | 55 | 98 | 74 | 60 | 181 | 67 | 37 | 11 | 27 | 23 | 41 | 50 |
| IT methods for management | 35 | 78 | 56 | 52 | 78 | 70 | 29 | 9 | 53 | 37 | 26 | 54 |
| Chemical engineering | 42 | 51 | 33 | 42 | 190 | 48 | 18 | 16 | 17 | 27 | 27 | 39 |
| Macromolecular chemistry, polymers | 56 | 31 | 40 | 38 | 96 | 40 | 13 | 10 | 10 | 12 | 34 | 41 |
| Environmental technology | 12 | 18 | 27 | 21 | 53 | 19 | 15 | 6 | 11 | 17 | 28 | 28 |
Filing years of the collected applications
Documents in the current publication window are deduplicated by application number and grouped by filing year. These are not the company's complete annual filings; older applications may only be published or granted within this window.
- 20191
- 20201
- 20215
- 202219
- 20233,785
- 20242,062
- 2025230Publication lag may still apply
Invention applications are generally published about 18 months after filing, or priority where claimed, and may be published earlier. Flags are estimated as of 2026-10-29. An unflagged year is still not necessarily complete; these counts cannot establish growth or contraction in R&D.
Multi-year evolution · With a longer collection window, this becomes a yearly view that marks the fastest-growing and shrinking fields.
04Strategy profile
Four reproducible structural ratios, with the other published companies on the same scale. Entity scopes and windows can differ, so read relative positions only — this is not a ranking.
Concentration
0.250.000.94
Position 20 of 20 published companies.
Method: Sum of squared field shares
Utility model share
5%0%33%
Position 2 of 20 published companies.
Method: Utility model documents ÷ all documents
Green technology share
—The source has no CPC codes, so this cannot be computed.
Method: Documents with CPC Y02 ÷ documents with CPC
Manufacturing and inspection share
34%0%50%
Position 2 of 20 published companies.
Method: Applications in measurement, chemical engineering, handling and machine tools ÷ all applications
05Collaboration
Organisations that filed jointly with the collected entities; line weight represents joint applications. Name-based candidates and reviewed relationships are labeled separately. Co-applications alone do not prove ownership.
DAQING OILFIELD CO LTD506Other co-applicant · relationship unverified
CNPC SHENZHEN NEW ENERGY RES INSTITUTE CO LTD170Other co-applicant · relationship unverified
PETROCHINA COALBED METHANE CO LTD50Other co-applicant · relationship unverified
CHINA UNITED COALBED METHANE NATIONAL ENGINEERING RES CENTER CO LTD48Other co-applicant · relationship unverified
RES INST SAFETY & ENV TECH CO LTD CHINA NAT PETROLEUM CORP40Other co-applicant · relationship unverified
PETROCHINA SHANGHAI NEW MATERIALS RES INSTITUTE CO LTD39Other co-applicant · relationship unverified
XINJIANG TARIM PETROLEUM EXPLOR AND DEVELOPMENT HEADQUARTERS CO LTD36Other co-applicant · relationship unverified
PETROCHINA KUNLUN GAS CO LTD27Other co-applicant · relationship unverified
CNPC KARAMAY PETROCHEMICAL CO LTD26Other co-applicant · relationship unverified
KUNLUN SHUZHI TECH CO LTD25Other co-applicant · relationship unverified
Possible affiliation is a review lead only. Co-applicants without a review record are not automatically group members or external partners, and their independent filings are not added to these statistics.
Review the entity list06Entities and scope
Entity review and data coverage are separate facts. This list shows the current entity configuration, evidence and relationship dates, matched name by name against this snapshot.
Filters change only the entity list below, not the statistics. A complete group snapshot is not available to switch to on this page.
Showing 1 of 1 entities
中国石油天然气股份有限公司
Primary entityVerifiedSome names covered
- Names collected in this snapshot
- PETROCHINA CO LTD
- Names outside this snapshot
- 中国石油天然气股份有限公司 · PetroChina Company Limited
- Recorded relationship dates
- Not recorded — Not recorded
上交所公司中英文名称与源端原始申请人对应，不将上级CNPC集团等同于上市公司。
Review evidenceRelationship dates help interpret renaming, acquisitions and joint ventures. Missing dates do not establish an indefinite relationship or verify the current patent owner.
07Publication jurisdictions
14 publication offices · 6,110 documents
Counts use the publication office of each collected document, retaining publications from the same family in different jurisdictions. This is not a map of complete families, granted or active rights; WO and EP denote international and European publication routes.
- CNChina5,869
- WOPCT international publication171
- EPEuropean Patent Office publication23
- USUnited States14
- GBUnited Kingdom8
- DEGermany7
- AUAustralia5
- KRSouth Korea5
Show 6 more jurisdictions
- CACanada3
- ATAustria1
- BEBelgium1
- NLNetherlands1
- SASaudi Arabia1
- ZASouth Africa1
08Documents
28 published documentsClear filtersNewest first
- GB2641480A
Other
2025-12-03Rock core sample analysis method and system, and electronic device and storage medium
PETROCHINA CO LTD
Computer technologyMeasurement
- DE112023003628T8
Other
2025-11-27Verfahren, system und vorrichtung zum erfassen eines phasenanteils einer mehrphasenströmung
PETROCHINA CO LTD
Measurement
- DE112023005145T5
Other
2025-10-02Verfahren zum herstellen von iridiumnanokristall
PETROCHINA CO LTD
Materials, metallurgySurface technology, coating
- GB2639784A
Other
2025-10-01Amino-terminated liquid butadiene nitrile rubber and preparation method therefor, and silicon-containing amino-terminated liquid butadiene nitrile rubber
PETROCHINA CO LTD
Macromolecular chemistry, polymers
- GB2639357A
Other
2025-09-24Continuous flow preparation method for metallocene catalyst
PETROCHINA CO LTD
Organic fine chemistryMacromolecular chemistry, polymers
- AT527015B1
Other
2025-09-15Polypropylenharz und Verfahren zu seiner Herstellung
PETROCHINA CO LTD
Macromolecular chemistry, polymers
- AU2023442355A1
Other
2025-09-11Method and system for simulating and calculating yield of multilayer commingled production coalbed methane well
PETROCHINA CO LTD
Computer technology
- AU2024400378A1
Other
2025-09-11Unloading method for synthetic resin container
CRRC QIQIHAR ROLLING STOCK CO LTD / PETROCHINA CO LTD
HandlingTransport
- AU2024400974A1
Other
2025-09-11Unloading platform and unloading method
CRRC QIQIHAR ROLLING STOCK CO LTD / PETROCHINA CO LTD
HandlingTransport
- AU2024401376A1
Other
2025-09-11Container chassis and container with container chassis
CRRC QIQIHAR ROLLING STOCK CO LTD / PETROCHINA CO LTD
HandlingTransport
- DE112023003628T5
Other
2025-09-04Verfahren, system und vorrichtung zum erfassen eines phasenanteils einer mehrphasenströmung
PETROCHINA CO LTD
Measurement
- DE112023004666T5
Other
2025-09-04Organischer polymerträger, z-n-katalysator und herstellungsverfahren dafür und verwendung davon
PETROCHINA CO LTD
Macromolecular chemistry, polymers
- ZA202500044B
Other
2025-07-30Combined paleontological identification method for paleo-water depth
PETROCHINA CO LTD
- DE112023003499T5
Other
2025-07-24Aschefreies Rostschutzmittel und Verfahren zu seiner Herstellung
PETROCHINA CO LTD
Basic materials chemistry
- DE112023004135T5
Other
2025-07-24Boriertes-Fettsäureglycerid-Verschleißschutzadditiv und Herstellungsverfahren dafür
PETROCHINA CO LTD
Basic materials chemistry
- GB2636926A
Other
2025-07-02Middle-phase microemulsion, and preparation method therefor and use thereof
PETROCHINA CO LTD
Basic materials chemistryCivil engineering
- CA3249948A1
Other
2025-06-17Reservoir property modeling method and apparatus
PETROCHINA CO LTD
Computer technology
- AU2023472189A1
Other
2025-06-12Dolomite standard sample development method calibrated by age method, dolomite standard sample, and use thereof
PETROCHINA CO LTD
Measurement
- GB202506404D0
Other
2025-06-11Amino-terminated liquid butadiene nitrile rubber and preparation method therefor, and silicon-containing amino-terminated liquid butadiene nitrile rubber
PETROCHINA CO LTD
- NL2036713B1
Other
2025-06-04Method and system for identification of remaining oil zones induced by tectonic tilting
PETROCHINA CO LTD
MeasurementCivil engineering
Titles come from the source bibliography. Select a number to read the full document on this site.
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09Method and sources
Counting units
Publications are deduplicated by publication number; applications by application number, so a publication and its grant count once; families by the source family ID. Technology fields are derived automatically from IPC codes using the WIPO IPC–Technology Concordance (March 2026), without manual or AI labeling.
Publication or grant documents do not establish current rights. Check legal status and current owners with the relevant patent office.
Entity scope
These statistics use only the applicant names and publication dates collected for this snapshot. They do not represent the full company or group portfolio.
- Search jurisdictions
- Worldwide
- Applicant-name basis
- Dataset-harmonized assignees (not verified current owners)
- Applicant names included in these statistics
- PETROCHINA CO LTD
- Reviewed names not covered
- PETROCHINA COMPANY LIMITED · 中国石油天然气股份有限公司
Current entity configuration and review evidence
The reviewed entities and aliases below describe the current company configuration. Only names listed above are covered by this snapshot.
中国石油天然气股份有限公司
Configured aliases: PetroChina Company Limited · PETROCHINA CO LTD
Original review note: 上交所公司中英文名称与源端原始申请人对应，不将上级CNPC集团等同于上市公司。
Review evidenceData sources
- Google Patents · PartialPublished 2025-01-01 to 2025-12-31 · retrieved 2026-10-29 · 6,110 included · 0 out of scopeSource and terms
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