Overall rank by patents
#28,552
Across all tracked assignees
USPTO PatentsView assignee record - 9 granted patents across 2 technology areas, active 2022–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: A21C (MACHINES OR EQUIPMENT FOR MAKING OR PROCESSING DOUGHS; HANDLING BAKED ARTICLES MADE FROM DOUGH).
The verdict
Dongguan holds 9 US patents across 2 technology areas, rank #28,552 of 50,000 tracked assignees.
Dongguan ZHEN Zhong KANG Precision Transmission Technology Co., Ltd has been granted 9 US utility patents between 2022 and 2024, placing Dongguan ZHEN Zhong KANG Precision Transmission Technology Co., Ltd at rank #28,552 across all assignees tracked by PlainPatent. This portfolio spans 2 distinct Cooperative Patent Classification (CPC) subclasses, averaging 3.3 claims per patent with primary concentration in A21C (MACHINES OR EQUIPMENT FOR MAKING OR PROCESSING DOUGHS; HANDLING BAKED ARTICLES MADE FROM DOUGH). As a Foreign Corporation, Dongguan ZHEN Zhong KANG Precision Transmission Technology Co., Ltd is one of the more focused assignees in the PatentsView dataset. By volume, Dongguan sits between Documill OY (9 patents, rank #28,548) and Dpx Holdings B.v. (9 patents, rank #28,556) - the closest US assignees by grant volume. The composite Innovation Score of 35.0/100 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 2022 through 2024, with 9 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. Dongguan ZHEN Zhong KANG Precision Transmission Technology Co., Ltd's 3.3 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while specialization in 2 subclasses reflects a tightly scoped invention area. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Dongguan ZHEN Zhong KANG Precision Transmission Technology Co., Ltd against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
DOCUMILL OY
9 patents
DONGGUAN APAC BIOTECHNOLOGY CO., LTD.
9 patents
DONGGUAN SILVERLIT TOYS CO., LTD
9 patents
DONGGUAN TIGER POINT, METAL & PLASTIC PRODUCTS CO., LTD.
9 patents
DONGIN OPTICAL CO., LTD.
9 patents
DOREL JUVENILE (ZHONGSHAN) PRODUCT CO., LTD
9 patents
DOTS TECHNOLOGY INC.
9 patents
DPx Holdings B.V.
9 patents
DONGGUAN ZHEN ZHONG KANG PRECISION TRANSMISSION TECHNOLOGY CO., LTD
9 patents
What this shows Dongguan holds 9 patents at rank #28,552, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #28,552 in granted patent volume.
Other assignees with the most granted patents in Dongguan's primary technology class.
Dongguan's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
35 Top 51% higher than 49% 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 2022–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2022 | 2 | 22.2% |
| 2023 | 6 | 66.7% |
| 2024 | 1 | 11.1% |
Top 2 of 2 technology areas
Overall rank by patents
#28,552
Across all tracked assignees
35.0 out of 100
How to use this portfolio
Dongguan's 9 grants land it in the top 51% 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.