USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Changjiang River Scientific Research Institute of Changjiang Water Resources Commission

Q: Where does Changjiang River Scientific Research Institute of Changjiang Water Resources Commission rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Changjiang River Scientific Research Institute of Changjiang Water Resources Commission ranks #45,596 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Q: 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.

USPTO PatentsView assignee record - 5 granted patents across 15 technology areas, recorded in grant years 2019–2024. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Changjiang ranks #45,596 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 15 technology areas.

#45,596
of 49,997 US assignees by volume: Top 22%
by Innovation Score (45.9/100): 10.0
avg claims per patent: +300%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R45596 · Foreign Corporation #45,596 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #45,596/49,997
PHOTO-FINISH Chang Gung Memorial…
CPC-FOCUS G01N · 15 areas
INNOV-PAR 45.9/100
CLAIMS-PAR 10.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +300% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Chang Gung Memorial Hospital (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

Qualcomm Incorporated · highest

85
Changjiang River… · this assignee

46
3D Lighting… · lowest

7

What this shows Changjiang's Innovation Score is 45.9/100 (top 22% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Where Changjiang's grants concentrate

Changjiang River Scientific Research Institute of Changjiang Water Resources Commission is a focused PatentsView assignee: 15 CPC subclasses with 60% of grants classified under G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties). Peak complete grant year is 2023 (2 grants) versus a trough of 1 in 2019. By volume, Changjiang sits between Chang Gung Memorial Hospital and Cheese & Whey Systems, Inc..

Changjiang's three-year grant acceleration

Changjiang River Scientific Research Institute of Changjiang Water Resources Commission shows 4 grants in 2022–2024 against only 1 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Chang Gung Memori…

5
Changde Yixiang I…

5
Change Up

5
Changhua Christia…

5
Chargeitspot

5
Charles River Lab…

5
Check Point Advan…

5
Cheese & Whey Sys…

5
Changjiang River… ◀

5

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.

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, grant velocity, technology breadth, and claim depth (0–100)

46 Top 22% higher than 78% of 49,997 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

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?

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 3

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 1

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

B23B - TURNING; Boring 1

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 1

B28D - Working Stone OR Stone-like Materials 1

B05C - Apparatus FOR Applying Fluent Materials TO Surfaces, IN General 1

E02B - Hydraulic Engineering 1

G09B - Educational OR Demonstration APPLIANCES; Appliances FOR Teaching, OR Communicating With, THE Blind, Deaf OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; Diagrams 1

F16H - Gearing 1

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 1

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 1

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 1

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 1

Y10T - Technical Subjects Covered BY Former US Classification 1

Top 15 of 15 technology areas

Where it ranks

Overall rank by patents

#45,596

of 49,997 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?

What to do with this data

Changjiang River Scientific Research Institute of Changjiang Water Resources Commission's patent record in context - here's where to go next.

Changjiang River Scientific Research Institute of Changjiang Water Resources Commission's lead technology class is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties), 60% of its portfolio - see every assignee active in that class. Explore G01N
Ranked #45,596 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Changjiang River Scientific Research Institute of Changjiang Water Resources Commission against Chang Gung Memorial Hospital, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.9/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

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

Compiled by PlainPatent, US Patent Intelligence Editorial Process · May 15, 2026

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.