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BYDCATLMidea

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.

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

Midea: Applicant names included in these statistics — MIDEA GROUP CO LTDReviewed names not covered — 美的集团股份有限公司

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%

Midea

Publications
1,770
Invention share
57%
Concentration
0.27
Green technology
11%
0.63

BYD × CATL

0.19

BYD × Midea

0.20

CATL × Midea

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 fieldBYD / CATL / Midea
Electrical machinery, apparatus, energy
31.8%
76.6%
8.6%
Transport
45.4%
5.8%
0.5%
Thermal processes and apparatus
1.1%
0.6%
42.1%
Other consumer goods
1.1%
0.1%
18.8%
Measurement
5.2%
10.4%
2.5%
Computer technology
6.9%
3.6%
6.8%
Mechanical elements
8.3%
1.9%
6.8%
Furniture, games
0.2%
0%
13.6%
Environmental technology
1.1%
0.9%
8.4%
Handling
1.7%
4.9%
3.6%
Audio-visual technology
3.8%
1.2%
4%
Chemical engineering
0.6%
3%
4.7%

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.

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

Midea

Collected applications
153
Share of collected applications with IPC
8.6%

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

View Midea 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.

H02JPower supply, energy storage
BYD195
CATL140
Midea20
G06FData processing
BYD213
CATL64
Midea73
H02KElectric machines
BYD279
CATL11
Midea45
G01RMeasuring electric variables
BYD121
CATL176
Midea22
H05KPrinted circuits, assemblies
BYD118
CATL44
Midea66
F16KValves
BYD116
CATL13
Midea62
H01RElectrical connectors
BYD128
CATL46
Midea7
G06VImage and video recognition
BYD118
CATL24
Midea20
H02MPower conversion
BYD97
CATL17
Midea37
G06TImage processing
BYD68
CATL42
Midea23

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.

BYD

  • B60RVehicle electrics, fittings
    BYD
    411
    CATL
    10
    Midea
    —
  • B60LElectric vehicle propulsion
    BYD
    584
    CATL
    181
    Midea
    —
  • B60KPropulsion arrangement
    BYD
    336
    CATL
    38
    Midea
    —
  • B60WVehicle sub-unit control
    BYD
    265
    CATL
    —
    Midea
    —
  • B60GSuspension
    BYD
    248
    CATL
    —
    Midea
    —
  • B62DBodies, chassis
    BYD
    262
    CATL
    13
    Midea
    —

CATL

  • H01MBatteries, electrochemical cells
    BYD
    1,009
    CATL
    2,730
    Midea
    —
  • G01NAnalysing materials
    BYD
    —
    CATL
    123
    Midea
    12
  • G01RMeasuring electric variables
    BYD
    121
    CATL
    176
    Midea
    22
  • B23KWelding, soldering
    BYD
    26
    CATL
    102
    Midea
    —
  • B05CCoating apparatus
    BYD
    —
    CATL
    66
    Midea
    —
  • B65GConveying, storage
    BYD
    34
    CATL
    88
    Midea
    8

Midea

  • F24FAir conditioning, ventilation
    BYD
    —
    CATL
    —
    Midea
    476
  • F25DRefrigerators
    BYD
    —
    CATL
    —
    Midea
    311
  • A47JKitchen equipment
    BYD
    —
    CATL
    —
    Midea
    149
  • F25BRefrigeration, heat pumps
    BYD
    37
    CATL
    —
    Midea
    160
  • C02FWater treatment
    BYD
    —
    CATL
    —
    Midea
    134
  • A47LDomestic cleaning
    BYD
    —
    CATL
    —
    Midea
    81

04Publication rhythm

BYDCATLMideaPublications per period
Publications per period
PeriodBYDCATLMidea
2024-01≥448 (partial coverage)≥289 (partial coverage)≥207 (partial coverage)
2024-02≥217 (partial coverage)≥262 (partial coverage)≥102 (partial coverage)
2024-03≥288 (partial coverage)≥365 (partial coverage)≥265 (partial coverage)
2024-04≥360 (partial coverage)≥356 (partial coverage)≥211 (partial coverage)
2024-05≥524 (partial coverage)≥460 (partial coverage)≥226 (partial coverage)
2024-06≥999 (partial coverage)≥331 (partial coverage)≥212 (partial coverage)
2024-07≥1,283 (partial coverage)≥532 (partial coverage)≥265 (partial coverage)
2024-08≥855 (partial coverage)≥665 (partial coverage)≥138 (partial coverage)
2024-09≥512 (partial coverage)≥468 (partial coverage)≥144 (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.