CNIPA.AI

Company patentsCompare

HEAD TO HEAD

Bank of ChinaChina Construction BankMicrosoft

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.

Bank of China: Applicant names included in these statistics — BANK OF CHINA CO LTD · BANK OF CHINA LTDReviewed names not covered — BANK OF CHINA LIMITED · 中国银行股份有限公司

China Construction Bank: Applicant names included in these statistics — CHINA CONSTRUCTION BANK CORPReviewed names not covered — CHINA CONSTRUCTION BANK CORPORATION · 中国建设银行股份有限公司

Microsoft: Applicant names included in these statistics — MICROSOFT TECHNOLOGY LICENSING LLCReviewed names not covered — MICROSOFT TECHNOLOGY LICENSING, LLC · MICROSOFT TECHNOLOGY LICENSING, LLC.

Bank of China

Publications
138
Invention share
98%
Concentration
0.75
Green technology
—

China Construction Bank

Publications
1,106
Invention share
100%
Concentration
0.72
Green technology
—

Microsoft

Publications
7,140
Invention share
97%
Concentration
0.59
Green technology
—
1.00

Bank of China × China Construction Bank

0.89

Bank of China × Microsoft

0.89

China Construction Bank × Microsoft

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 fieldBank of China / China Construction Bank / Microsoft
Computer technology
74.6%
72.3%
72.5%
IT methods for management
42%
40.7%
4.2%
Digital communication
13.8%
17.9%
22.4%
Audio-visual technology
3.6%
0.2%
10.5%
Optics
0%
0%
3.8%
Telecommunications
0%
0.5%
3.3%
Electrical machinery, apparatus, energy
0%
0%
2.1%
Measurement
0%
0%
2.1%
Semiconductors
0%
0%
2.1%
Control
0%
0.5%
1%
Basic communication processes
0%
0%
1.3%
Medical technology
0%
0.4%
0.7%

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.

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
Bank of China83
China Construction Bank764
Microsoft3,890
H04LDigital transmission
Bank of China19
China Construction Bank191
Microsoft1,379
G06NComputing models, AI
Bank of China18
China Construction Bank118
Microsoft1,064
G06QBusiness data processing
Bank of China58
China Construction Bank450
Microsoft290
G06TImage processing
Bank of China7
China Construction Bank13
Microsoft479
H04NPictorial communication, video
Bank of China3
China Construction Bank8
Microsoft482
G06VImage and video recognition
Bank of China18
China Construction Bank24
Microsoft295
G10LSpeech processing
Bank of China1
China Construction Bank4
Microsoft250
H04WWireless networks
Bank of China1
China Construction Bank5
Microsoft196

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.

Bank of China

  • G06VImage and video recognition
    Bank of China
    18
    China Construction Bank
    24
    Microsoft
    295
  • G06QBusiness data processing
    Bank of China
    58
    China Construction Bank
    450
    Microsoft
    290
  • F17D
    Bank of China
    1
    China Construction Bank
    —
    Microsoft
    —

China Construction Bank

  • G06FData processing
    Bank of China
    83
    China Construction Bank
    764
    Microsoft
    3,890
  • G07C
    Bank of China
    —
    China Construction Bank
    2
    Microsoft
    —
  • G07F
    Bank of China
    —
    China Construction Bank
    1
    Microsoft
    —
  • G07G
    Bank of China
    —
    China Construction Bank
    1
    Microsoft
    —
  • G08B
    Bank of China
    —
    China Construction Bank
    1
    Microsoft
    —

Microsoft

  • H04NPictorial communication, video
    Bank of China
    3
    China Construction Bank
    8
    Microsoft
    482
  • G02BOptical elements
    Bank of China
    —
    China Construction Bank
    —
    Microsoft
    236
  • G10LSpeech processing
    Bank of China
    1
    China Construction Bank
    4
    Microsoft
    250
  • H04LDigital transmission
    Bank of China
    19
    China Construction Bank
    191
    Microsoft
    1,379
  • G06NComputing models, AI
    Bank of China
    18
    China Construction Bank
    118
    Microsoft
    1,064
  • H04WWireless networks
    Bank of China
    1
    China Construction Bank
    5
    Microsoft
    196

04Publication rhythm

Bank of ChinaChina Construction BankMicrosoftPublications per period
Publications per period
PeriodBank of ChinaChina Construction BankMicrosoft
2025-01≥19 (partial coverage)≥199 (partial coverage)≥539 (partial coverage)
2025-02≥65 (partial coverage)≥228 (partial coverage)≥503 (partial coverage)
2025-03≥51 (partial coverage)≥163 (partial coverage)≥603 (partial coverage)
2025-04Not collected≥52 (partial coverage)≥647 (partial coverage)
2025-05Not collected≥15 (partial coverage)≥566 (partial coverage)
2025-06Not collected≥16 (partial coverage)≥487 (partial coverage)
2025-07Not collected≥22 (partial coverage)≥686 (partial coverage)
2025-08Not collected≥16 (partial coverage)≥563 (partial coverage)
2025-09≥1 (partial coverage)≥10 (partial coverage)≥587 (partial coverage)
2025-10Not collected≥11 (partial coverage)≥689 (partial coverage)
2025-11Not collected≥67 (partial coverage)≥582 (partial coverage)
2025-12≥2 (partial coverage)≥307 (partial coverage)≥688 (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.