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Bank of ChinaCXMTNVIDIA

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

+ Agricultural Bank of China2025-01 — 2025-12+ Alibaba2025-01 — 2025-12+ Alphabet (Google)2025-01 — 2025-12+ Amazon2025-01 — 2025-12+ Apple2025-01 — 2025-12✓ Bank of China2025-01 — 2025-12+ BOE2024-01 — 2024-12+ Broadcom2025-01 — 2025-12+ BYD2024-01 — 2024-12+ CATL2024-01 — 2024-12+ China Construction Bank2025-01 — 2025-12+ China Mobile2025-01 — 2025-12✓ CXMT2025-01 — 2025-12+ Eli Lilly2025-01 — 2025-12+ Huawei2024-01 — 2024-12+ ICBC2025-01 — 2025-12+ Meta2025-01 — 2025-12+ Microsoft2025-01 — 2025-12+ Midea2024-01 — 2024-12+ Kweichow Moutai2025-01 — 2025-12✓ NVIDIA2025-01 — 2025-12+ PetroChina2025-01 — 2025-12+ SpaceX2025-01 — 2025-12+ Tencent2025-01 — 2025-12+ Tesla2025-01 — 2025-12
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

CXMT: Applicant names included in these statistics — CHANGXIN MEMORY TECH INC · CHANGXIN MEMORY TECHNOLOGIES INC · CHANGXIN TECH GROUP CO LTD · CXMT CORPReviewed names not covered — CHANGXIN MEMORY TECHNOLOGIES, INC. · CXMT CORPORATION · 睿力集成电路有限公司 · 长鑫存储技术有限公司 · 长鑫科技集团股份有限公司

NVIDIA: Applicant names included in these statistics — NVIDIA CORPReviewed names not covered — NVIDIA CORP. · NVIDIA CORPORATION

Bank of China

Publications
138
Invention share
98%
Concentration
0.75
Green technology
—

CXMT

Publications
1,570
Invention share
98%
Concentration
0.58
Green technology
—

NVIDIA

Publications
2,387
Invention share
81%
Concentration
0.66
Green technology
—
0.38

Bank of China × CXMT

0.86

Bank of China × NVIDIA

0.45

CXMT × NVIDIA

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 / CXMT / NVIDIA
Computer technology
74.6%
33.6%
79.3%
Semiconductors
0%
67.9%
1.1%
IT methods for management
42%
0%
0.5%
Digital communication
13.8%
0.5%
9.1%
Audio-visual technology
3.6%
0.5%
8.8%
Measurement
0%
2.3%
7%
Basic communication processes
0%
5.3%
1.8%
Transport
0%
0.1%
6.9%
Control
0%
1.4%
5%
Handling
0%
0.4%
2.6%
Optics
0%
2.2%
0.8%
Telecommunications
0%
0.1%
2.4%

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.

CXMT

Collected applications
7
Share of collected applications with IPC
0.5%

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

View CXMT publications in this field

NVIDIA

Collected applications
206
Share of collected applications with IPC
8.8%

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

View NVIDIA 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
Bank of China83
CXMT60
NVIDIA881
G06TImage processing
Bank of China7
CXMT4
NVIDIA719
G06NComputing models, AI
Bank of China18
CXMT2
NVIDIA497
G06VImage and video recognition
Bank of China18
CXMT2
NVIDIA403
H04LDigital transmission
Bank of China19
CXMT7
NVIDIA155
H05KPrinted circuits, assemblies
Bank of China2
CXMT7
NVIDIA75

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

  • G06QBusiness data processing
    Bank of China
    58
    CXMT
    —
    NVIDIA
    12
  • G06FData processing
    Bank of China
    83
    CXMT
    60
    NVIDIA
    881
  • H04LDigital transmission
    Bank of China
    19
    CXMT
    7
    NVIDIA
    155
  • F17D
    Bank of China
    1
    CXMT
    —
    NVIDIA
    —

CXMT

  • H10BMemory devices
    Bank of China
    —
    CXMT
    689
    NVIDIA
    —
  • G11CStatic stores
    Bank of China
    —
    CXMT
    480
    NVIDIA
    16
  • H01LSemiconductor devices
    Bank of China
    —
    CXMT
    378
    NVIDIA
    13
  • H10D
    Bank of China
    —
    CXMT
    220
    NVIDIA
    —
  • H10W
    Bank of China
    —
    CXMT
    161
    NVIDIA
    11
  • H10P
    Bank of China
    —
    CXMT
    68
    NVIDIA
    —

NVIDIA

  • G06TImage processing
    Bank of China
    7
    CXMT
    4
    NVIDIA
    719
  • G06NComputing models, AI
    Bank of China
    18
    CXMT
    2
    NVIDIA
    497
  • B60WVehicle sub-unit control
    Bank of China
    —
    CXMT
    —
    NVIDIA
    138
  • G06VImage and video recognition
    Bank of China
    18
    CXMT
    2
    NVIDIA
    403
  • H04NPictorial communication, video
    Bank of China
    3
    CXMT
    —
    NVIDIA
    127
  • G10LSpeech processing
    Bank of China
    1
    CXMT
    —
    NVIDIA
    87

04Publication rhythm

Bank of ChinaCXMTNVIDIAPublications per period
Publications per period
PeriodBank of ChinaCXMTNVIDIA
2025-01≥19 (partial coverage)≥233 (partial coverage)≥182 (partial coverage)
2025-02≥65 (partial coverage)≥180 (partial coverage)≥166 (partial coverage)
2025-03≥51 (partial coverage)≥99 (partial coverage)≥170 (partial coverage)
2025-04Not collected≥79 (partial coverage)≥158 (partial coverage)
2025-05Not collected≥108 (partial coverage)≥193 (partial coverage)
2025-06Not collected≥177 (partial coverage)≥183 (partial coverage)
2025-07Not collected≥156 (partial coverage)≥243 (partial coverage)
2025-08Not collected≥112 (partial coverage)≥182 (partial coverage)
2025-09≥1 (partial coverage)≥148 (partial coverage)≥265 (partial coverage)
2025-10Not collected≥89 (partial coverage)≥234 (partial coverage)
2025-11Not collected≥64 (partial coverage)≥199 (partial coverage)
2025-12≥2 (partial coverage)≥125 (partial coverage)≥212 (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.