Amazon
- Collected applications
- 39
- Share of collected applications with IPC
- 2%
Coverage is incomplete; counts and shares describe only the collected subset.
View Amazon publications in this fieldCompany patentsCompare
HEAD TO HEAD
AmazonCXMT
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.
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.
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
- Publications
- 2,095
- Invention share
- 93%
- Concentration
- 0.54
- Green technology
- —
- Publications
- 1,570
- Invention share
- 98%
- Concentration
- 0.58
- Green technology
- —
0.41Field similarity
01Technology field mirror
The 12 fields with the largest combined share. Share shows structure; count shows scale.
| Amazon | Technology field | CXMT |
|---|---|---|
65.9% | Computer technology | 33.6% |
0.3% | Semiconductors | 67.9% |
29.5% | Digital communication | 0.5% |
7.9% | IT methods for management | 0% |
7% | Audio-visual technology | 0.5% |
5.2% | Control | 1.4% |
3.8% | Measurement | 2.3% |
0.8% | Basic communication processes | 5.3% |
4.9% | Handling | 0.4% |
4% | Telecommunications | 0.1% |
3.5% | Transport | 0.1% |
2% | Electrical machinery, apparatus, energy | 1.2% |
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 fieldOne 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
CXMT60
H04LDigital transmission
Amazon442
CXMT7
G06NComputing models, AI
Amazon257
CXMT2
G06VImage and video recognition
Amazon138
CXMT2
G06TImage processing
Amazon101
CXMT4
B65GConveying, storage
Amazon48
CXMT3
H04BTransmission
Amazon40
CXMT2
B25JManipulators, robots
Amazon39
CXMT2
G05D
Amazon36
CXMT3
G01RMeasuring electric variables
Amazon6
CXMT25
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
- CXMT
- 60
- H04LDigital transmission
- Amazon
- 442
- CXMT
- 7
- G10LSpeech processing
- Amazon
- 275
- CXMT
- —
- G06NComputing models, AI
- Amazon
- 257
- CXMT
- 2
- G06QBusiness data processing
- Amazon
- 154
- CXMT
- —
- G06VImage and video recognition
- Amazon
- 138
- CXMT
- 2
CXMT
- H10BMemory devices
- Amazon
- —
- CXMT
- 689
- G11CStatic stores
- Amazon
- —
- CXMT
- 480
- H01LSemiconductor devices
- Amazon
- —
- CXMT
- 378
- H10D
- Amazon
- —
- CXMT
- 220
- H10W
- Amazon
- —
- CXMT
- 161
- H10P
- Amazon
- —
- CXMT
- 68
04Publication rhythm
| Period | Amazon | CXMT |
|---|---|---|
| 2025-01 | ≥242 (partial coverage) | ≥233 (partial coverage) |
| 2025-02 | ≥149 (partial coverage) | ≥180 (partial coverage) |
| 2025-03 | ≥130 (partial coverage) | ≥99 (partial coverage) |
| 2025-04 | ≥168 (partial coverage) | ≥79 (partial coverage) |
| 2025-05 | ≥186 (partial coverage) | ≥108 (partial coverage) |
| 2025-06 | ≥140 (partial coverage) | ≥177 (partial coverage) |
| 2025-07 | ≥223 (partial coverage) | ≥156 (partial coverage) |
| 2025-08 | ≥161 (partial coverage) | ≥112 (partial coverage) |
| 2025-09 | ≥195 (partial coverage) | ≥148 (partial coverage) |
| 2025-10 | ≥201 (partial coverage) | ≥89 (partial coverage) |
| 2025-11 | ≥141 (partial coverage) | ≥64 (partial coverage) |
| 2025-12 | ≥159 (partial coverage) | ≥125 (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.