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CXMTNVIDIASpaceX

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.

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

SpaceX: Applicant names included in these statistics — SPACE EXPLORATION TECH CORPReviewed names not covered — SPACE EXPLORATION TECHNOLOGIES CORP. · SPACE EXPLORATION TECHNOLOGIES CORPORATION

CXMT

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

NVIDIA

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

SpaceX

Publications
71
Invention share
80%
Concentration
0.71
Green technology
—
0.45

CXMT × NVIDIA

0.01

CXMT × SpaceX

0.08

NVIDIA × SpaceX

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 fieldCXMT / NVIDIA / SpaceX
Computer technology
33.6%
79.3%
0%
Telecommunications
0.1%
2.4%
78.1%
Semiconductors
67.9%
1.1%
0%
Digital communication
0.5%
9.1%
29.7%
Basic communication processes
5.3%
1.8%
9.4%
Measurement
2.3%
7%
3.1%
Audio-visual technology
0.5%
8.8%
1.6%
Transport
0.1%
6.9%
1.6%
Electrical machinery, apparatus, energy
1.2%
1.1%
4.7%
Control
1.4%
5%
0%
Mechanical elements
0.1%
0.3%
4.7%
Macromolecular chemistry, polymers
0%
0%
3.1%

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.

CXMT

Collected applications
18
Share of collected applications with IPC
1.2%

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

View CXMT 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.

H04LDigital transmission
CXMT7
NVIDIA155
SpaceX13
H05KPrinted circuits, assemblies
CXMT7
NVIDIA75
SpaceX1
H04BTransmission
CXMT2
NVIDIA43
SpaceX29
H03MCoding, decoding
CXMT10
NVIDIA21
SpaceX1
H03L
CXMT13
NVIDIA5
SpaceX4
H02H
CXMT4
NVIDIA4
SpaceX2

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.

CXMT

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

NVIDIA

  • G06FData processing
    CXMT
    60
    NVIDIA
    881
    SpaceX
    —
  • G06TImage processing
    CXMT
    4
    NVIDIA
    719
    SpaceX
    —
  • G06NComputing models, AI
    CXMT
    2
    NVIDIA
    497
    SpaceX
    —
  • G06VImage and video recognition
    CXMT
    2
    NVIDIA
    403
    SpaceX
    —
  • B60WVehicle sub-unit control
    CXMT
    —
    NVIDIA
    138
    SpaceX
    —
  • H04NPictorial communication, video
    CXMT
    —
    NVIDIA
    127
    SpaceX
    —

SpaceX

  • H01QAntennas
    CXMT
    —
    NVIDIA
    —
    SpaceX
    30
  • H04BTransmission
    CXMT
    2
    NVIDIA
    43
    SpaceX
    29
  • H04WWireless networks
    CXMT
    —
    NVIDIA
    42
    SpaceX
    15
  • H04LDigital transmission
    CXMT
    7
    NVIDIA
    155
    SpaceX
    13
  • H03L
    CXMT
    13
    NVIDIA
    5
    SpaceX
    4
  • C08K
    CXMT
    —
    NVIDIA
    —
    SpaceX
    2

04Publication rhythm

CXMTNVIDIASpaceXPublications per period
Publications per period
PeriodCXMTNVIDIASpaceX
2025-01≥233 (partial coverage)≥182 (partial coverage)≥6 (partial coverage)
2025-02≥180 (partial coverage)≥166 (partial coverage)≥10 (partial coverage)
2025-03≥99 (partial coverage)≥170 (partial coverage)≥6 (partial coverage)
2025-04≥79 (partial coverage)≥158 (partial coverage)≥3 (partial coverage)
2025-05≥108 (partial coverage)≥193 (partial coverage)≥10 (partial coverage)
2025-06≥177 (partial coverage)≥183 (partial coverage)≥7 (partial coverage)
2025-07≥156 (partial coverage)≥243 (partial coverage)≥8 (partial coverage)
2025-08≥112 (partial coverage)≥182 (partial coverage)≥2 (partial coverage)
2025-09≥148 (partial coverage)≥265 (partial coverage)≥7 (partial coverage)
2025-10≥89 (partial coverage)≥234 (partial coverage)≥3 (partial coverage)
2025-11≥64 (partial coverage)≥199 (partial coverage)≥6 (partial coverage)
2025-12≥125 (partial coverage)≥212 (partial coverage)≥3 (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.