CNIPA.AI

Company patentsCompare

HEAD TO HEAD

BOEBYDCATL

Technology portfolios compared in the same window and counting units. Scale is compared only within the same field or subclass.

Same window · published 2024-01-01 — 2024-12-31Some name or date coverage is incomplete; affected counts are lower bounds

This is a structural comparison of collected portfolios. The same requested window does not establish equal entity scope, covered months or industry; no competitive ranking is inferred.

Applicant-name coverage differs. The counts below cover only the listed names and do not represent complete company portfolios.

BOE: Applicant names included in these statistics — BOE TECHNOLOGY GROUP CO LTDReviewed names not covered — 京东方科技集团股份有限公司

BYD: Applicant names included in these statistics — BYD CO LTDReviewed names not covered — 比亚迪股份有限公司

CATL: Applicant names included in these statistics — NINGDE CONTEMPORARY AMPEREX TECH CO LTDReviewed names not covered — CONTEMPORARY AMPEREX TECHNOLOGY CO LTD · 宁德时代新能源科技股份有限公司

BOE

Publications
3,740
Invention share
94%
Concentration
0.36
Green technology
1.4%

BYD

Publications
5,486
Invention share
66%
Concentration
0.33
Green technology
27%

CATL

Publications
3,728
Invention share
48%
Concentration
0.61
Green technology
79%
0.13

BOE × BYD

0.08

BOE × CATL

0.63

BYD × CATL

Cosine similarity of application counts across 35 fields. 1 is identical, 0 is no overlap.

01Technology field mirror

The 12 fields with the largest combined share. Share shows structure; count shows scale.

Technology field mirror
Technology fieldBOE / BYD / CATL
Electrical machinery, apparatus, energy
2.2%
31.8%
76.6%
Transport
0.4%
45.4%
5.8%
Semiconductors
39.8%
1.1%
1.1%
Audio-visual technology
36.4%
3.8%
1.2%
Computer technology
15.6%
6.9%
3.6%
Optics
19.3%
1.1%
0%
Measurement
2.3%
5.2%
10.4%
Mechanical elements
0.4%
8.3%
1.9%
Machine tools
0.4%
1.4%
5.5%
Handling
0.4%
1.7%
4.9%
Digital communication
2.6%
3.2%
0.3%
Surface technology, coating
1.1%
0.9%
2.7%

Inspect one technology field

Inspect collected applications, portfolio share and supporting publications within one field. A technology overlap does not establish that companies in different industries are direct competitors.

BOE

Collected applications
81
Share of collected applications with IPC
2.2%

Coverage is incomplete; counts and shares describe only the collected subset.

View BOE publications in this field

BYD

Collected applications
1,743
Share of collected applications with IPC
31.8%

Coverage is incomplete; counts and shares describe only the collected subset.

View BYD publications in this field

CATL

Collected applications
2,856
Share of collected applications with IPC
76.6%

Coverage is incomplete; counts and shares describe only the collected subset.

View CATL publications in this field

One application may belong to multiple fields, so shares can sum to more than 100%. Drill-down lists publications; an application publication and its grant may appear separately.

02Same problem: shared IPC subclasses

The 10 subclasses in every company's top 60 with the most combined applications. Scale is compared within a subclass, never across different business scopes.

G06FData processing
BOE390
BYD213
CATL64
H01LSemiconductor devices
BOE508
BYD41
CATL11
B60RVehicle electrics, fittings
BOE7
BYD411
CATL10
H05KPrinted circuits, assemblies
BOE173
BYD118
CATL44
G01RMeasuring electric variables
BOE20
BYD121
CATL176
G06VImage and video recognition
BOE92
BYD118
CATL24
H01RElectrical connectors
BOE9
BYD128
CATL46
G06TImage processing
BOE70
BYD68
CATL42
B23KWelding, soldering
BOE7
BYD26
CATL102
G06NComputing models, AI
BOE47
BYD55
CATL19

03Where each one leans

Observed emphasis within each company’s collected top-60 IPC subclasses. A dash for another company means outside its top-60 list, not zero applications or a market gap. Incomplete coverage can also change the ordering.

BOE

  • H10KOrganic electric devices
    BOE
    1,100
    BYD
    —
    CATL
    33
  • G09GDisplay control
    BOE
    797
    BYD
    —
    CATL
    —
  • G02FOptical control devices
    BOE
    616
    BYD
    —
    CATL
    —
  • H01LSemiconductor devices
    BOE
    508
    BYD
    41
    CATL
    11
  • G09FDisplaying, signs
    BOE
    471
    BYD
    —
    CATL
    —
  • G06FData processing
    BOE
    390
    BYD
    213
    CATL
    64

BYD

  • B60RVehicle electrics, fittings
    BOE
    7
    BYD
    411
    CATL
    10
  • B60LElectric vehicle propulsion
    BOE
    —
    BYD
    584
    CATL
    181
  • B60KPropulsion arrangement
    BOE
    —
    BYD
    336
    CATL
    38
  • B60WVehicle sub-unit control
    BOE
    —
    BYD
    265
    CATL
    —
  • H02KElectric machines
    BOE
    —
    BYD
    279
    CATL
    11
  • B60GSuspension
    BOE
    —
    BYD
    248
    CATL
    —

CATL

  • H01MBatteries, electrochemical cells
    BOE
    —
    BYD
    1,009
    CATL
    2,730
  • G01NAnalysing materials
    BOE
    23
    BYD
    —
    CATL
    123
  • G01RMeasuring electric variables
    BOE
    20
    BYD
    121
    CATL
    176
  • B23KWelding, soldering
    BOE
    7
    BYD
    26
    CATL
    102
  • B05CCoating apparatus
    BOE
    —
    BYD
    —
    CATL
    66
  • B65GConveying, storage
    BOE
    —
    BYD
    34
    CATL
    88

04Publication rhythm

BOEBYDCATLPublications per period
Publications per period
PeriodBOEBYDCATL
2024-01≥468 (partial coverage)≥448 (partial coverage)≥289 (partial coverage)
2024-02≥365 (partial coverage)≥217 (partial coverage)≥262 (partial coverage)
2024-03≥562 (partial coverage)≥288 (partial coverage)≥365 (partial coverage)
2024-04≥600 (partial coverage)≥360 (partial coverage)≥356 (partial coverage)
2024-05≥495 (partial coverage)≥524 (partial coverage)≥460 (partial coverage)
2024-06≥382 (partial coverage)≥999 (partial coverage)≥331 (partial coverage)
2024-07≥451 (partial coverage)≥1,283 (partial coverage)≥532 (partial coverage)
2024-08≥417 (partial coverage)≥855 (partial coverage)≥665 (partial coverage)
2024-09Not collected≥512 (partial coverage)≥468 (partial coverage)
2024-10Not collectedNot collectedNot collected
2024-11Not collectedNot collectedNot collected
2024-12Not collectedNot collectedNot collected

Empty dashed outlines mark uncollected periods. Hatched bars and ≥ counts mark partial coverage.

Publication timing follows examination and publication cycles, not R&D intensity.

What makes it comparableThe same publication window and counting units. Companies with different windows are not put in one comparison.

What is not comparableGroup totals. Business and entity scopes differ; compare scale within a field or subclass.

Not a rankingSimilarity and shares describe structure, not patent value, quality or technical leadership.