Overall rank by patents
#48,463
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
Linhai Zhongtian Electronic Appliance co.,ltd
USPTO PatentsView assignee record — 5 granted patents across 7 technology areas, active 2016–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: A45B (WALKING STICKS ; UMBRELLAS; LADIES' OR LIKE FANS).
5
Total patents granted
7
CPC technology areas
7.8
Avg claims per patent
-33%
5-year filing velocity
Portfolio overview
Linhai Zhongtian Electronic Appliance co.,ltd has been granted 5 US utility patents between 2016 and 2025, placing Linhai Zhongtian Electronic Appliance co.,ltd at rank #48,463 across all assignees tracked by PlainPatent. This portfolio spans 7 distinct Cooperative Patent Classification (CPC) subclasses, averaging 7.8 claims per patent with primary concentration in A45B (WALKING STICKS ; UMBRELLAS; LADIES' OR LIKE FANS). As a Foreign Corporation, Linhai Zhongtian Electronic Appliance co.,ltd is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 26.9/100 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 2 grants, compared with 3 in the 2015–2019 window — a -33% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. Linhai Zhongtian Electronic Appliance co.,ltd's 7.8 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 7 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Linhai Zhongtian Electronic Appliance co.,ltd against peers pursuing similar technology classes.
How does Linhai 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
- Linhai Zhongtian… ◀ 5
Linhai Zhongtian Electronic Appliance co.,ltd
5 patents
What this shows Linhai holds 5 patents — placing it at rank #48,463 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 · 2016–2025
Grants by year
Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2016 | 1 | 20.0% |
| 2017 | 1 | 20.0% |
| 2019 | 1 | 20.0% |
| 2023 | 1 | 20.0% |
| 2025 | 1 | 20.0% |
Which technologies does Linhai Zhongtian Electronic Appliance co.,ltd patent most?
Top 7 of 7 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Focused
Claim Depth Simple
Velocity Declining
Frequently Asked Questions
How many patents does Linhai Zhongtian Electronic Appliance co.,ltd hold?
Linhai Zhongtian Electronic Appliance co.,ltd holds 5 US granted patents filed between 2016 and 2025, spanning 7 technology areas.
What is Linhai Zhongtian Electronic Appliance co.,ltd's Innovation Score?
Linhai Zhongtian Electronic Appliance co.,ltd has an Innovation Score of 26.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Linhai Zhongtian Electronic Appliance co.,ltd focus on?
Linhai Zhongtian Electronic Appliance co.,ltd's top technology area is A45B (WALKING STICKS ; UMBRELLAS; LADIES' OR LIKE FANS) with 4 patents. The company has filed patents in 7 CPC subclasses total.
Is Linhai Zhongtian Electronic Appliance co.,ltd's patent filing rate increasing or decreasing?
Linhai Zhongtian Electronic Appliance co.,ltd's recent filing velocity is -33% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for Linhai Zhongtian Electronic Appliance co.,ltd's patents?
Linhai Zhongtian Electronic Appliance co.,ltd's patents average 7.8 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the Linhai Zhongtian Electronic Appliance 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
A45B technology
Linhai Zhongtian Electronic Appliance co.,ltd's primary CPC class — all holders and yearly trends
Top 50 patent holders
See where Linhai Zhongtian Electronic Appliance 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
