Overall rank by patents
#1,728
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
AAC Microtech (Changzhou) Co., Ltd.
USPTO PatentsView assignee record — 236 granted patents across 34 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H04R (LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS).
236
Total patents granted
34
CPC technology areas
9.0
Avg claims per patent
+1188%
5-year filing velocity
Portfolio overview
AAC Microtech (Changzhou) Co., Ltd. has been granted 236 US utility patents between 2015 and 2025, placing AAC Microtech (Changzhou) Co., Ltd. at rank #1,728 across all assignees tracked by PlainPatent. This portfolio spans 34 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.0 claims per patent with primary concentration in H04R (LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS). As a Foreign Corporation, AAC Microtech (Changzhou) Co., Ltd. is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 64.9/100 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. Between 2020 and 2025 the company received 219 grants, compared with 17 in the 2015–2019 window — a +1188% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. AAC Microtech (Changzhou) Co., Ltd.'s 9.0 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 34 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark AAC Microtech (Changzhou) Co., Ltd. against peers pursuing similar technology classes.
How does AAC 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
- AAC Microtech (Ch… ◀ 236
AAC Microtech (Changzhou) Co., Ltd.
236 patents
What this shows AAC holds 236 patents — placing it at rank #1,728 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 · 2015–2025
Grants by year
Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 6 | 2.5% |
| 2016 | 5 | 2.1% |
| 2017 | 1 | 0.4% |
| 2018 | 1 | 0.4% |
| 2019 | 4 | 1.7% |
| 2021 | 2 | 0.8% |
| 2022 | 5 | 2.1% |
| 2023 | 60 | 25.4% |
| 2024 | 76 | 32.2% |
| 2025 | 76 | 32.2% |
Which technologies does AAC Microtech (Changzhou) Co., Ltd. patent most?
Top 15 of 34 technology areas
Patent Moat Analysis
Portfolio Volume Moderate
Tech Breadth Multi-domain
Claim Depth Simple
Velocity Accelerating
Frequently Asked Questions
How many patents does AAC Microtech (Changzhou) Co., Ltd. hold?
AAC Microtech (Changzhou) Co., Ltd. holds 236 US granted patents filed between 2015 and 2025, spanning 34 technology areas.
What is AAC Microtech (Changzhou) Co., Ltd.'s Innovation Score?
AAC Microtech (Changzhou) Co., Ltd. has an Innovation Score of 64.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does AAC Microtech (Changzhou) Co., Ltd. focus on?
AAC Microtech (Changzhou) Co., Ltd.'s top technology area is H04R (LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS) with 192 patents. The company has filed patents in 34 CPC subclasses total.
Is AAC Microtech (Changzhou) Co., Ltd.'s patent filing rate increasing or decreasing?
AAC Microtech (Changzhou) Co., Ltd.'s recent filing velocity is +1188% compared to the prior five-year period. This indicates accelerating innovation.
What does claim depth mean for AAC Microtech (Changzhou) Co., Ltd.'s patents?
AAC Microtech (Changzhou) Co., Ltd.'s patents average 9.0 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the AAC Microtech (Changzhou) Co., Ltd. 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
H04R technology
AAC Microtech (Changzhou) Co., Ltd.'s primary CPC class — all holders and yearly trends
Top 50 patent holders
See where AAC Microtech (Changzhou) Co., Ltd. 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
