Where does Nanjing Institute of Environmental Sciences, MEE rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Nanjing Institute of Environmental Sciences, MEE ranks #23,037 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Nanjing Institute of Environmental Sciences, MEE hold?

Nanjing Institute of Environmental Sciences, MEE holds 12 US utility patents granted between 2022 and 2024, spanning 13 technology areas.

What is Nanjing Institute of Environmental Sciences, MEE's Innovation Score?

Nanjing Institute of Environmental Sciences, MEE has an Innovation Score of 46.9 out of 100 (top 20% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Nanjing Institute of Environmental Sciences, MEE focus on?

Nanjing Institute of Environmental Sciences, MEE's top technology area is B09C (Reclamation OF Contaminated Soil) with 4 patents, ranking #18 of 99 assignees active in that subclass. Grants appear in 13 CPC subclasses total.

Is Nanjing Institute of Environmental Sciences, MEE's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Nanjing Institute of Environmental Sciences, MEE.

What does claim depth mean for Nanjing Institute of Environmental Sciences, MEE's patents?

Nanjing Institute of Environmental Sciences, MEE's patents average 8.8 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

USPTO 2015–2025 USPTO PatentsView Foreign Government

Nanjing Institute of Environmental Sciences, MEE

Q: How is the Nanjing Institute of Environmental Sciences, MEE 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 - 12 granted patents across 13 technology areas, recorded in grant years 2022–2024. 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: B09C (Reclamation OF Contaminated Soil).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Nanjing ranks #23,037 of 49,997 tracked US assignees by granted-patent volume, with 12 patents across 13 technology areas.

#23,037
of 49,997 US assignees by volume: Top 20%
by Innovation Score (46.9/100): 8.8
avg claims per patent

USPTO PatentsView assignee plate

Corpus R23037 · Foreign Government #23,037 · 12 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNGOV · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 12 grants
MID-PACK #23,037/49,997
PHOTO-FINISH Nailomatic
CPC-FOCUS B09C · 13 areas
INNOV-PAR 46.9/100
CLAIMS-PAR 8.8 claims/avg
TYPE-FRNGOV Foreign Gov
SPAN-YRS 2022–2024 · 3y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Nailomatic Ltd. (±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.

How Nanjing’s 46.9 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 8.9 pts (19%) Velocity 20.0 pts (43%) Breadth 12.7 pts (27%) Claim depth 5.3 pts (11%)

Qualcomm Incorporated · highest

85
Nanjing Institute… · this assignee

47
3D Lighting… · lowest

7

What this shows Nanjing's Innovation Score is 46.9/100 (top 20% 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.

Does more volume mean deeper claims for Nanjing?

Each dot is one of Nanjing’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Nanjing’s own 8.8 claims/patent is at or below the 15.3 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Nanjing vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Nanjing's grants concentrate

Nanjing Institute of Environmental Sciences, MEE is a focused PatentsView assignee: 13 CPC subclasses with 33.3% of grants classified under B09C (Reclamation OF Contaminated Soil). Peak complete grant year is 2024 (10 grants) versus a trough of 1 in 2022. By volume, Nanjing sits between Nunaps Inc. and Nanotemper Technologies GMBH.

Nanjing's three-year grant acceleration

Nanjing Institute of Environmental Sciences, MEE shows 12 grants in 2022–2024 against only 0 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.

Nunaps

12
NXP Aeronautics R…

12
Nailomatic

12
Nanjing Genscript…

12
Nanjing Universit…

12
Nano Precision Ta…

12
Nanotech Industri…

12
Nanotemper

12
Nanjing Institute… ◀

12

What this shows Nanjing holds 12 patents at rank #23,065, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Nanjing

By rank, the assignees closest to #23,065 in granted patent volume.

Leaders in B09C (Reclamation OF Contaminated Soil)

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

Nanjing's Innovation Score vs. every tracked assignee

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

47 Top 20% higher than 80% 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 · 2022–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2022–2019 baseline. Full figures in the table below.

View data table

Nanjing Institute of Environmental Sciences, MEE patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2022	1	8.3%
2023	1	8.3%
2024	10	83.3%

Which technologies does Nanjing Institute of Environmental Sciences, MEE patent most?

B09C - Reclamation OF Contaminated Soil 4

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 4

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 3

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 2

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 2

Y02A - Technologies FOR Adaptation TO Climate Change 2

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 1

C12Q - Measuring OR Testing Processes Involving Enzymes, Nucleic Acids OR Microorganisms ; Compositions OR Test Papers THEREFOR; Processes OF Preparing Such COMPOSITIONS; Condition-responsive Control IN Microbiological OR Enzymological Processes 1

E02D - FOUNDATIONS; EXCAVATIONS; Embankments ; Underground OR Underwater Structures 1

E02B - Hydraulic Engineering 1

B02C - Crushing, Pulverising, OR Disintegrating IN GENERAL; Milling Grain 1

B01D - Separation 1

B01L - Chemical OR Physical Laboratory Apparatus FOR General USE 1

Top 13 of 13 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Nanjing Institute of Environmental Sciences, MEE's patent record in context - here's where to go next.

Nanjing Institute of Environmental Sciences, MEE's lead technology class is B09C (Reclamation OF Contaminated Soil), 33.3% of its portfolio - see every assignee active in that class. Explore B09C
Ranked #23,037 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Nanjing Institute of Environmental Sciences, MEE against Nunaps Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 46.9/100 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.