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AmazonApplePetroChina

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

Same window · published 2025-01-01 — 2025-12-31Some 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.

Amazon: Applicant names included in these statistics — AMAZON TECH INCReviewed names not covered — AMAZON TECHNOLOGIES INC · AMAZON TECHNOLOGIES INC. · AMAZON TECHNOLOGIES, INC · AMAZON TECHNOLOGIES, INC.

Apple: Applicant names included in these statistics — APPLE INCReviewed names not covered — APPLE COMPUTER INC · APPLE COMPUTER, INC. · APPLE INC. · APPLE, INC.

PetroChina: Applicant names included in these statistics — PETROCHINA CO LTDReviewed names not covered — PETROCHINA COMPANY LIMITED · 中国石油天然气股份有限公司

Amazon

Publications
2,095
Invention share
93%
Concentration
0.54
Green technology
—

Apple

Publications
12,360
Invention share
87%
Concentration
0.38
Green technology
—

PetroChina

Publications
6,110
Invention share
95%
Concentration
0.25
Green technology
—
0.89

Amazon × Apple

0.46

Amazon × PetroChina

0.35

Apple × PetroChina

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 fieldAmazon / Apple / PetroChina
Computer technology
65.9%
39.1%
22.4%
Digital communication
29.5%
42.1%
0.7%
Measurement
3.8%
5.7%
22.9%
Civil engineering
0.2%
0.1%
31.5%
Audio-visual technology
7%
14.2%
0.4%
IT methods for management
7.9%
2.4%
9.5%
Telecommunications
4%
13.9%
0.1%
Basic materials chemistry
0.1%
0%
11.9%
Electrical machinery, apparatus, energy
2%
4.8%
3.6%
Chemical engineering
0.5%
0.1%
9%
Control
5.2%
1.9%
1.6%
Optics
0.9%
7.2%
0.1%

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.

Apple

Collected applications
531
Share of collected applications with IPC
4.8%

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

View Apple 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
Amazon912
Apple3,635
PetroChina1,114
H04LDigital transmission
Amazon442
Apple2,146
PetroChina32
G06TImage processing
Amazon101
Apple986
PetroChina180
G06QBusiness data processing
Amazon154
Apple264
PetroChina577
G01NAnalysing materials
Amazon11
Apple24
PetroChina752
G06NComputing models, AI
Amazon257
Apple200
PetroChina268
G06VImage and video recognition
Amazon138
Apple417
PetroChina81
H02JPower supply, energy storage
Amazon15
Apple225
PetroChina69
G08B
Amazon20
Apple72
PetroChina37
G01RMeasuring electric variables
Amazon6
Apple61
PetroChina24

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.

Amazon

  • G06FData processing
    Amazon
    912
    Apple
    3,635
    PetroChina
    1,114
  • G10LSpeech processing
    Amazon
    275
    Apple
    240
    PetroChina
    —
  • G06NComputing models, AI
    Amazon
    257
    Apple
    200
    PetroChina
    268
  • H04LDigital transmission
    Amazon
    442
    Apple
    2,146
    PetroChina
    32
  • G06VImage and video recognition
    Amazon
    138
    Apple
    417
    PetroChina
    81
  • B65GConveying, storage
    Amazon
    48
    Apple
    —
    PetroChina
    —

Apple

  • H04WWireless networks
    Amazon
    114
    Apple
    3,570
    PetroChina
    —
  • H04BTransmission
    Amazon
    40
    Apple
    981
    PetroChina
    —
  • G02BOptical elements
    Amazon
    11
    Apple
    679
    PetroChina
    —
  • G06TImage processing
    Amazon
    101
    Apple
    986
    PetroChina
    180
  • H04MTelephonic communication
    Amazon
    20
    Apple
    405
    PetroChina
    —
  • G09GDisplay control
    Amazon
    4
    Apple
    300
    PetroChina
    —

PetroChina

  • E21B
    Amazon
    —
    Apple
    —
    PetroChina
    1,882
  • G01NAnalysing materials
    Amazon
    11
    Apple
    24
    PetroChina
    752
  • G01V
    Amazon
    —
    Apple
    —
    PetroChina
    571
  • B01J
    Amazon
    —
    Apple
    —
    PetroChina
    385
  • C09KMaterials for applications
    Amazon
    —
    Apple
    —
    PetroChina
    330
  • C08FAddition polymers
    Amazon
    —
    Apple
    —
    PetroChina
    284

04Publication rhythm

AmazonApplePetroChinaPublications per period
Publications per period
PeriodAmazonApplePetroChina
2025-01≥242 (partial coverage)≥1,049 (partial coverage)≥410 (partial coverage)
2025-02≥149 (partial coverage)≥968 (partial coverage)≥695 (partial coverage)
2025-03≥130 (partial coverage)≥1,319 (partial coverage)≥574 (partial coverage)
2025-04≥168 (partial coverage)≥1,232 (partial coverage)≥558 (partial coverage)
2025-05≥186 (partial coverage)≥993 (partial coverage)≥1,028 (partial coverage)
2025-06≥140 (partial coverage)≥846 (partial coverage)≥674 (partial coverage)
2025-07≥223 (partial coverage)≥956 (partial coverage)≥299 (partial coverage)
2025-08≥161 (partial coverage)≥989 (partial coverage)≥143 (partial coverage)
2025-09≥195 (partial coverage)≥906 (partial coverage)≥486 (partial coverage)
2025-10≥201 (partial coverage)≥928 (partial coverage)≥403 (partial coverage)
2025-11≥141 (partial coverage)≥1,005 (partial coverage)≥383 (partial coverage)
2025-12≥159 (partial coverage)≥1,169 (partial coverage)≥457 (partial coverage)

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.