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
6,110 published documentsNewest first
- CN121222290A
Invention publication
2025-12-30Oil-water separation membrane and preparation method and application thereof
PETROCHINA CO LTD
Chemical engineeringEnvironmental technology
- CN121222413A
Invention publication
2025-12-30Catalytic cracking catalyst carrier material and preparation method thereof
PETROCHINA CO LTD
Basic materials chemistryChemical engineering
- CN121222414A
Invention publication
2025-12-30Preparation method of catalytic cracking auxiliary agent
PETROCHINA CO LTD
Basic materials chemistryChemical engineering
- CN121222471A
Invention publication
2025-12-30Preparation method of catalytic cracking catalyst
PETROCHINA CO LTD
Basic materials chemistryChemical engineering
- CN121225851A
Invention publication
2025-12-30Drilling water-based slurry treatment agent and preparation method and use method thereof
PETROCHINA CO LTD
Environmental technology
- CN121226414A
Invention publication
2025-12-30Olefin polymerization catalyst and preparation method and application thereof
PETROCHINA SHANGHAI NEW MATERIALS RES INSTITUTE CO LTD / PETROCHINA CO LTD
Organic fine chemistryMacromolecular chemistry, polymers
- CN121226589A
Invention publication
2025-12-30Double-center non-metallocene catalyst and preparation method thereof, butene-1-based elastomer and preparation method thereof
PETROCHINA CO LTD
Organic fine chemistryMacromolecular chemistry, polymers
- CN121226590A
Invention publication
2025-12-30Butene-based elastomer and preparation method thereof
PETROCHINA CO LTD
Macromolecular chemistry, polymers
- CN121226609A
Invention publication
2025-12-30Salt-resistant thickening agent for fracturing and preparation method and application thereof
PETROCHINA CO LTD
Macromolecular chemistry, polymersBasic materials chemistry
- CN121226620A
Invention publication
2025-12-30Temporary plugging agent and application, preparation method and use method thereof
PETROCHINA CO LTD
Macromolecular chemistry, polymersBasic materials chemistryCivil engineering
- CN121227304A
Invention publication
2025-12-30Synthetic oil type energy storage cooling liquid and preparation method thereof
CNPC KARAMAY PETROCHEMICAL CO LTD / PETROCHINA CO LTD
Electrical machinery, apparatus, energyBasic materials chemistry
- CN121227327A
Invention publication
2025-12-30Loose sandstone controlled dispersion acidification blocking removal system and blocking removal method
PETROCHINA CO LTD
Basic materials chemistryCivil engineering
- CN121227328A
Invention publication
2025-12-30Self-adhesive propping agent and preparation method and application thereof
PETROCHINA CO LTD
Basic materials chemistryCivil engineering
- CN121227396A
Invention publication
2025-12-30Process and apparatus for delayed coking, catalytic cracking and solvent refining combination of inferior residuum
CNPC KARAMAY PETROCHEMICAL CO LTD / PETROCHINA CO LTD
Basic materials chemistry
- CN121227554A
Invention publication
2025-12-30Bacillus bailii BVA, microbial inoculum, fermentation liquor and application thereof
PETROCHINA CO LTD
BiotechnologyCivil engineering
- CN121228970A
Invention publication
2025-12-30Periodic torsional impact load rock breaking device and drilling tool assembly
PETROCHINA CO LTD / XINJIANG TARIM PETROLEUM EXPLOR AND DEVELOPMENT HEADQUARTERS CO LTD
Civil engineering
- CN121228993A
Invention publication
2025-12-30Auxiliary device and method for forward-moving machine in workover operation of tower type pumping unit
DAQING OILFIELD CO LTD / PETROCHINA CO LTD
HandlingCivil engineering
- CN121229010A
Invention publication
2025-12-30Hydraulic control type oil jacket pressure communication and oil pipe blowout prevention tool and control system thereof
DAQING OILFIELD CO LTD / PETROCHINA CO LTD
Civil engineering
- CN121229011A
Invention publication
2025-12-30Packer
PETROCHINA CO LTD
Civil engineering
- CN121229012A
Invention publication
2025-12-30Hydraulic sealing anchoring packer for horizontal well and control system thereof
DAQING OILFIELD CO LTD / PETROCHINA CO LTD
Civil 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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