Overall rank by patents
#30,645
Across all tracked assignees
USPTO PatentsView assignee record - 9 granted patents across 8 technology areas, active 2018–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B22D (CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES).
The verdict
Zhuhai holds 9 US patents across 8 technology areas, rank #30,645 of 50,000 tracked assignees.
Zhuhai Runxingtai Electrical Co., Ltd. has been granted 9 US utility patents between 2018 and 2024, placing Zhuhai Runxingtai Electrical Co., Ltd. at rank #30,645 across all assignees tracked by PlainPatent. This portfolio spans 8 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.1 claims per patent with primary concentration in B22D (CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES). As a Foreign Corporation, Zhuhai Runxingtai Electrical Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Zhuhai sits between Zhejiang Rongsheng Tools Co., Ltd (9 patents, rank #30,641) and Zonhon Biopharma Institute, Inc. (9 patents, rank #30,649) - the closest US assignees by grant volume. The composite Innovation Score of 27.4/100 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 7 grants, compared with 2 in the 2015–2019 window, a +250% 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. Zhuhai Runxingtai Electrical Co., Ltd.'s 9.1 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 8 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Zhuhai Runxingtai Electrical Co., Ltd. against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
ZHEJIANG RONGSHENG TOOLS CO., LTD
9 patents
ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CONTROLS CO., LTD.
9 patents
ZHEJIANG TOPMB ELECTRICAL LIGHTING CO., LTD
9 patents
ZHUHAI EKTOUCH TECHNOLOGY CO., LTD.
9 patents
ZI YI ELECTRICAL ENGINEERING CO., LTD.
9 patents
ZIPTEK, LLC
9 patents
ZJU-HANGZHOU GLOBAL SCIENTIFIC AND TECHNOLOGICAL INNOVATION CENTER
9 patents
ZONHON BIOPHARMA INSTITUTE, INC.
9 patents
ZHUHAI RUNXINGTAI ELECTRICAL CO., LTD.
9 patents
What this shows Zhuhai holds 9 patents at rank #30,645, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #30,645 in granted patent volume.
Other assignees with the most granted patents in Zhuhai's primary technology class.
Zhuhai's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
27 Top 76% higher than 24% of 50,000 US assignees
Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025
Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2018 | 1 | 11.1% |
| 2019 | 1 | 11.1% |
| 2020 | 2 | 22.2% |
| 2021 | 2 | 22.2% |
| 2023 | 1 | 11.1% |
| 2024 | 2 | 22.2% |
Top 8 of 8 technology areas
Overall rank by patents
#30,645
Across all tracked assignees
27.4 out of 100
How to use this portfolio
Zhuhai's 9 grants land it in the top 76% by Innovation Score, but volume alone doesn't tell you where the strength sits.
Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.
Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.