PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission

USPTO PatentsView assignee record - 5 granted patents across 15 technology areas, active 2019–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G01N (INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES).

Explore the portfolio See the ranking
5
Total patents granted
15
CPC technology areas
10.0
Avg claims per patent
+300%
5-year filing velocity

The verdict

Changjiang holds 5 US patents across 15 technology areas, rank #45,811 of 50,000 tracked assignees.

#45,811
of 50,000 US assignees by volume
Top 22%
by Innovation Score (45.9/100)
10.0
avg claims per patent
+300%
filing velocity, last 5 yrs

Portfolio overview

Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission has been granted 5 US utility patents between 2019 and 2024, placing Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission at rank #45,811 across all assignees tracked by PlainPatent. This portfolio spans 15 distinct Cooperative Patent Classification (CPC) subclasses, averaging 10.0 claims per patent with primary concentration in G01N (INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES). As a Foreign Corporation, Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission is one of the more focused assignees in the PatentsView dataset. By volume, Changjiang sits between Chang Gung Memorial Hospital (5 patents, rank #45,807) and Cheese & Whey Systems, Inc. (5 patents, rank #45,815) - the closest US assignees by grant volume. The composite Innovation Score of 45.9/100 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 4 grants, compared with 1 in the 2015–2019 window, a +300% 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. Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission's 10.0 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 15 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission against peers pursuing similar technology classes.

Who files at Changjiang's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows Changjiang holds 5 patents at rank #45,811, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Source USPTO PatentsView, granted utility patents As of 2015–2025

Companies ranked near Changjiang

By rank, the assignees closest to #45,811 in granted patent volume.

Leaders in G01N (Investigating OR Analysing Materials BY Determining Their…)

Other assignees with the most granted patents in Changjiang's primary technology class.

Changjiang's Innovation Score vs. every tracked assignee

Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)

46 Top 22% higher than 78% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). Below this entry. 20–30: 13,162 US assignees (26%). Below this entry. 30–40: 15,294 US assignees (31%). Below this entry. 40–50: 11,491 US assignees (23%). This entry sits in this band. 50–60: 5,058 US assignees (10%). Above this entry. 60–70: 1,537 US assignees (3%). Above this entry. 70–80: 234 US assignees (0%). Above this entry. 80–90: 10 US assignees (0%). Above this entry. 90–100: 0 US assignees (0%). Above this entry. This assignee 0 100 every tracked assignee, bucketed by value

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

0.511.522.5 2019202220232024 1
USPTO utility patent grants by year · 2019–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2019–2019 baseline. Full figures in the table below.

View data table
Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission patent grants by year, 2015–2025
Year Patents Granted Share of Period
2019 1 20.0%
2022 1 20.0%
2023 2 40.0%
2024 1 20.0%

Which technologies does Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission patent most?

Top 15 of 15 technology areas

Patent Moat Analysis

Portfolio Volume Light
Tech Breadth Focused
Claim Depth Simple
Velocity Accelerating

Where it ranks

Overall rank by patents

#45,811

Across all tracked assignees

Innovation Score

45.9 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission hold?
Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission holds 5 US granted patents filed between 2019 and 2024, spanning 15 technology areas.
What is Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission's Innovation Score?
Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission has an Innovation Score of 45.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission focus on?
Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission's top technology area is G01N (INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES) with 3 patents. The company has filed patents in 15 CPC subclasses total.
Is Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission's patent filing rate increasing or decreasing?
Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission's recent filing velocity is +300% compared to the prior five-year period. This indicates accelerating innovation.
What does claim depth mean for Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission's patents?
Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission's patents average 10.0 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the Changjiang River Scientific Research Institute Of Changjiang Water Resources Commission 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.

How to use this portfolio

Changjiang's 5 grants land it in the top 22% by Innovation Score, but volume alone doesn't tell you where the strength sits.

  • Read that count against the largest US assignees before treating it as dominance - Changjiang ranks #45,811 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in G01N - see who else leads that technology area. G01N leaders
  • Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

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.

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.

Data sources used on this page
  • USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
  • Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
  • USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

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.