Overall rank by patents
#25,554
Across all tracked assignees
USPTO PatentsView assignee record - 11 granted patents across 13 technology areas, active 2017–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C12P (FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE).
The verdict
Xiamen holds 11 US patents across 13 technology areas, rank #25,554 of 50,000 tracked assignees.
Xiamen Kingdomway Group Company has been granted 11 US utility patents between 2017 and 2025, placing Xiamen Kingdomway Group Company at rank #25,554 across all assignees tracked by PlainPatent. This portfolio spans 13 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.4 claims per patent with primary concentration in C12P (FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE). As a Foreign Corporation, Xiamen Kingdomway Group Company is one of the more focused assignees in the PatentsView dataset. By volume, Xiamen sits between Wuhan Jingchen Intelligent Identification Technology Co., Ltd. (11 patents, rank #25,550) and Xuanwu Hospital Capital Medical University (11 patents, rank #25,558) - the closest US assignees by grant volume. The composite Innovation Score of 50.5/100 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. Between 2020 and 2025 the company received 9 grants, compared with 2 in the 2015–2019 window, a +350% 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. Xiamen Kingdomway Group Company's 15.4 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 13 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Xiamen Kingdomway Group Company against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
Wuhan Jingchen Intelligent Identification Technology Co., Ltd.
11 patents
Wuxi Chipown Microelectronics Co., Ltd.
11 patents
XEDA INTERNATIONAL S.A.
11 patents
XI'AN UNIVERSITY OF POSTS & TELECOMMUNICATIONS
11 patents
XIAOMI COMMUNICATIONS CO., LTD.
11 patents
XR Downhole LLC
11 patents
XTREME MARINE CORPORATION
11 patents
XUANWU HOSPITAL CAPITAL MEDICAL UNIVERSITY
11 patents
XIAMEN KINGDOMWAY GROUP COMPANY
11 patents
What this shows Xiamen holds 11 patents at rank #25,554, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
Xiamen's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
51 Top 13% higher than 87% 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 2017–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2017 | 1 | 9.1% |
| 2018 | 1 | 9.1% |
| 2020 | 1 | 9.1% |
| 2023 | 2 | 18.2% |
| 2024 | 2 | 18.2% |
| 2025 | 4 | 36.4% |
Top 13 of 13 technology areas
Overall rank by patents
#25,554
Across all tracked assignees
50.5 out of 100
How to use this portfolio
Xiamen's 11 grants land it in the top 13% 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.