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AmazonBroadcomPetroChina

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.

Broadcom: Applicant names included in these statistics — AVAGO TECH INT SALES PTE LID · AVAGO TECH INTERNATIONAL SALES PTE LTD · VMWARE INC · VMWARE LLCReviewed names not covered — AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED · VMWARE 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
—

Broadcom

Publications
1,230
Invention share
98%
Concentration
0.41
Green technology
—

PetroChina

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

Amazon × Broadcom

0.46

Amazon × PetroChina

0.33

Broadcom × 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 / Broadcom / PetroChina
Computer technology
65.9%
42.4%
22.4%
Digital communication
29.5%
45.2%
0.7%
Civil engineering
0.2%
0%
31.5%
Measurement
3.8%
2.5%
22.9%
IT methods for management
7.9%
0.4%
9.5%
Basic materials chemistry
0.1%
0.1%
11.9%
Basic communication processes
0.8%
10.9%
0%
Audio-visual technology
7%
3.1%
0.4%
Telecommunications
4%
5.8%
0.1%
Chemical engineering
0.5%
0%
9%
Semiconductors
0.3%
7.4%
0.1%
Electrical machinery, apparatus, energy
2%
1.8%
3.6%

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.

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
Broadcom456
PetroChina1,114
H04LDigital transmission
Amazon442
Broadcom439
PetroChina32
G06QBusiness data processing
Amazon154
Broadcom5
PetroChina577
G06NComputing models, AI
Amazon257
Broadcom28
PetroChina268
G06TImage processing
Amazon101
Broadcom7
PetroChina180
G06VImage and video recognition
Amazon138
Broadcom4
PetroChina81
H02JPower supply, energy storage
Amazon15
Broadcom5
PetroChina69
G01RMeasuring electric variables
Amazon6
Broadcom7
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

  • G10LSpeech processing
    Amazon
    275
    Broadcom
    2
    PetroChina
    —
  • G06NComputing models, AI
    Amazon
    257
    Broadcom
    28
    PetroChina
    268
  • G06VImage and video recognition
    Amazon
    138
    Broadcom
    4
    PetroChina
    81
  • H04NPictorial communication, video
    Amazon
    130
    Broadcom
    20
    PetroChina
    —
  • G06FData processing
    Amazon
    912
    Broadcom
    456
    PetroChina
    1,114
  • B65GConveying, storage
    Amazon
    48
    Broadcom
    —
    PetroChina
    —

Broadcom

  • H04LDigital transmission
    Amazon
    442
    Broadcom
    439
    PetroChina
    32
  • H04WWireless networks
    Amazon
    114
    Broadcom
    126
    PetroChina
    —
  • H01LSemiconductor devices
    Amazon
    —
    Broadcom
    60
    PetroChina
    —
  • H03MCoding, decoding
    Amazon
    7
    Broadcom
    62
    PetroChina
    —
  • H10W
    Amazon
    —
    Broadcom
    36
    PetroChina
    —
  • H04BTransmission
    Amazon
    40
    Broadcom
    58
    PetroChina
    —

PetroChina

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

04Publication rhythm

AmazonBroadcomPetroChinaPublications per period
Publications per period
PeriodAmazonBroadcomPetroChina
2025-01≥242 (partial coverage)≥207 (partial coverage)≥410 (partial coverage)
2025-02≥149 (partial coverage)≥92 (partial coverage)≥695 (partial coverage)
2025-03≥130 (partial coverage)≥141 (partial coverage)≥574 (partial coverage)
2025-04≥168 (partial coverage)≥163 (partial coverage)≥558 (partial coverage)
2025-05≥186 (partial coverage)≥101 (partial coverage)≥1,028 (partial coverage)
2025-06≥140 (partial coverage)≥79 (partial coverage)≥674 (partial coverage)
2025-07≥223 (partial coverage)≥77 (partial coverage)≥299 (partial coverage)
2025-08≥161 (partial coverage)≥56 (partial coverage)≥143 (partial coverage)
2025-09≥195 (partial coverage)≥69 (partial coverage)≥486 (partial coverage)
2025-10≥201 (partial coverage)≥86 (partial coverage)≥403 (partial coverage)
2025-11≥141 (partial coverage)≥94 (partial coverage)≥383 (partial coverage)
2025-12≥159 (partial coverage)≥65 (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.