Overall rank by patents
#269
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
CHANGXIN MEMORY TECHNOLOGIES, INC.
USPTO PatentsView assignee record — 1,589 granted patents across 110 technology areas, active 2021–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H01L (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10).
1,589
Total patents granted
110
CPC technology areas
15.1
Avg claims per patent
—
5-year filing velocity
Portfolio overview
CHANGXIN MEMORY TECHNOLOGIES, INC. has been granted 1,589 US utility patents between 2021 and 2025, placing CHANGXIN MEMORY TECHNOLOGIES, INC. at rank #269 across all assignees tracked by PlainPatent. This portfolio spans 110 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.1 claims per patent with primary concentration in H01L (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10). As a Foreign Corporation, CHANGXIN MEMORY TECHNOLOGIES, INC. is one of the broader-portfolio assignees in the PatentsView dataset. The composite Innovation Score of 79.5/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.
Filing cadence tells the strategic story. Historical data spans 2021 through 2025, with 1,589 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.
Claim depth and technology breadth together indicate competitive posture. CHANGXIN MEMORY TECHNOLOGIES, INC.'s 15.1 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark CHANGXIN MEMORY TECHNOLOGIES, INC. against peers pursuing similar technology classes.
How does CHANGXIN compare?
Granted US patents 2015–2025 versus the largest corporate holders — this company marked ◀
- Samsung
SAMSUNG ELECTRONICS CO., LTD.
106,890 patents
- International Bus…
International Business Machines Corporation
72,926 patents
- Canon 34,378
Canon Kabushiki Kaisha
34,378 patents
- LG 32,607
LG ELECTRONICS INC.
32,607 patents
- Taiwan Semiconduc… 31,041
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
31,041 patents
- Apple 30,560
Apple Inc.
30,560 patents
- Qualcomm Incorpor… 30,354
QUALCOMM Incorporated
30,354 patents
- Intel 27,498
Intel Corporation
27,498 patents
- Changxin Memory ◀ 1,589
CHANGXIN MEMORY TECHNOLOGIES, INC.
1,589 patents
What this shows CHANGXIN holds 1,589 patents — placing it at rank #269 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.
USPTO utility patent grants by year · 2021–2025
Grants by year
Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2021 | 17 | 1.1% |
| 2022 | 86 | 5.4% |
| 2023 | 244 | 15.4% |
| 2024 | 736 | 46.3% |
| 2025 | 506 | 31.8% |
Which technologies does CHANGXIN MEMORY TECHNOLOGIES, INC. patent most?
Top 15 of 110 technology areas
Patent Moat Analysis
Portfolio Volume Strong
Tech Breadth Diversified
Claim Depth Standard
Frequently Asked Questions
How many patents does CHANGXIN MEMORY TECHNOLOGIES, INC. hold?
CHANGXIN MEMORY TECHNOLOGIES, INC. holds 1,589 US granted patents filed between 2021 and 2025, spanning 110 technology areas.
What is CHANGXIN MEMORY TECHNOLOGIES, INC.'s Innovation Score?
CHANGXIN MEMORY TECHNOLOGIES, INC. has an Innovation Score of 79.5 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does CHANGXIN MEMORY TECHNOLOGIES, INC. focus on?
CHANGXIN MEMORY TECHNOLOGIES, INC.'s top technology area is H01L (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10) with 607 patents. The company has filed patents in 110 CPC subclasses total.
Is CHANGXIN MEMORY TECHNOLOGIES, INC.'s patent filing rate increasing or decreasing?
Insufficient historical data is available to calculate a velocity trend for CHANGXIN MEMORY TECHNOLOGIES, INC..
What does claim depth mean for CHANGXIN MEMORY TECHNOLOGIES, INC.'s patents?
CHANGXIN MEMORY TECHNOLOGIES, INC.'s patents average 15.1 claims each. This falls within the standard range, providing solid legal coverage.
How is the CHANGXIN MEMORY TECHNOLOGIES, INC. patent data sourced?
All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.
Learn More
Explore the patent dataset
H01L technology
CHANGXIN MEMORY TECHNOLOGIES, INC.'s primary CPC class — all holders and yearly trends
Top 50 patent holders
See where CHANGXIN MEMORY TECHNOLOGIES, INC. ranks among the largest US patent assignees
All technology classes
Browse every CPC technology area by patent activity
How the score works
The four dimensions behind the Innovation Score
Related
Data sourced from USPTO PatentsView — official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.
Read our methodology — how this data is sourced, computed, and verified.
All federal data sources used on this page
- USPTO PatentsView — official U.S. Patent and Trademark Office bulk patent data. patentsview.org
- USPTO Patent Application Information Retrieval (PAIR) — application status and file history. uspto.gov/patents/pair
- USPTO Bulk Data Storage System — comprehensive patent text + claims dataset. bulkdata.uspto.gov
- USPTO CPC Classification — Cooperative Patent Classification scheme for technology categorization. uspto.gov/cpc
- SEC EDGAR — public filings cross-reference for assignee corporate entity matching. sec.gov/edgar
- WIPO PATENTSCOPE — international patent context (related international filings). wipo.int/patentscope
