Overall rank by patents
#39,549
Across all tracked assignees
USPTO PatentsView assignee record - 6 granted patents across 0 technology areas, active 2019–2022. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search.
The verdict
Chengdu holds 6 US patents across 0 technology areas, rank #39,549 of 50,000 tracked assignees.
Chengdu Yishouweisheng Technology Inc. has been granted 6 US utility patents between 2019 and 2022, placing Chengdu Yishouweisheng Technology Inc. at rank #39,549 across all assignees tracked by PlainPatent. This portfolio spans 0 distinct Cooperative Patent Classification (CPC) subclasses, averaging 1.0 claims per patent. As a Foreign Corporation, Chengdu Yishouweisheng Technology Inc. is one of the more focused assignees in the PatentsView dataset. By volume, Chengdu sits between Chemfree Corporation (6 patents, rank #39,545) and Children's Medical Research Institute (6 patents, rank #39,553) - the closest US assignees by grant volume. The composite Innovation Score of 14.0/100 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. Between 2020 and 2025 the company received 5 grants, compared with 1 in the 2015–2019 window, a +400% 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. Chengdu Yishouweisheng Technology Inc.'s 1.0 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while specialization in 0 subclasses reflects a tightly scoped invention area. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Chengdu Yishouweisheng Technology Inc. against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
ChemFree Corporation
6 patents
Chemapotheca, LLC
6 patents
Chemic Laboratories, Inc.
6 patents
Chengdu Baiyu Pharmaceutical Co., Ltd.
6 patents
Chexology, LLC
6 patents
Chien Hwa Coating Technology, Inc.
6 patents
Children's Hospital Medical Center of Akron
6 patents
Children's Medical Research Institute
6 patents
Chengdu Yishouweisheng Technology Inc.
6 patents
What this shows Chengdu holds 6 patents at rank #39,549, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #39,549 in granted patent volume.
Chengdu's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
14 Top 98% higher than 2% 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 2019–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2019 | 1 | 16.7% |
| 2020 | 1 | 16.7% |
| 2021 | 1 | 16.7% |
| 2022 | 3 | 50.0% |
Overall rank by patents
#39,549
Across all tracked assignees
14.0 out of 100
How to use this portfolio
Chengdu's 6 grants land it in the top 98% 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.