USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Guangdong Institute Of Eco-environmental Science & Technology

USPTO PatentsView assignee record - 8 granted patents across 15 technology areas, active 2017–2022. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B09C (RECLAMATION OF CONTAMINATED SOIL).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

10.1

Avg claims per patent

-67%

5-year filing velocity

The verdict

Guangdong holds 8 US patents across 15 technology areas, rank #31,841 of 50,000 tracked assignees.

#31,841
of 50,000 US assignees by volume: Top 71%
by Innovation Score (29.0/100): 10.1
avg claims per patent: -67%
filing velocity, last 5 yrs

Portfolio overview

Guangdong Institute Of Eco-environmental Science & Technology has been granted 8 US utility patents between 2017 and 2022, placing Guangdong Institute Of Eco-environmental Science & Technology at rank #31,841 across all assignees tracked by PlainPatent. This portfolio spans 15 distinct Cooperative Patent Classification (CPC) subclasses, averaging 10.1 claims per patent with primary concentration in B09C (RECLAMATION OF CONTAMINATED SOIL). As a Foreign Corporation, Guangdong Institute Of Eco-environmental Science & Technology is one of the more focused assignees in the PatentsView dataset. By volume, Guangdong sits between Greentec-usa, Inc. (8 patents, rank #31,837) and Guangzhou Yu Junrui Trading Co., Ltd (8 patents, rank #31,845) - the closest US assignees by grant volume. The composite Innovation Score of 29.0/100 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 2 grants, compared with 6 in the 2015–2019 window, a -67% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. Guangdong Institute Of Eco-environmental Science & Technology's 10.1 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 Guangdong Institute Of Eco-environmental Science & Technology against peers pursuing similar technology classes.

Greentec-usa

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8
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8
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8
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8
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8
Guangdong Institu… ◀

8

What this shows Guangdong holds 8 patents at rank #31,841, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Guangdong

By rank, the assignees closest to #31,841 in granted patent volume.

Leaders in B09C (Reclamation OF Contaminated SOIL)

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

Guangdong's Innovation Score vs. every tracked assignee

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

29 Top 71% higher than 29% 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

USPTO utility patent grants by year · 2017–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Guangdong Institute Of Eco-environmental Science & Technology patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	12.5%
2018	2	25.0%
2019	3	37.5%
2021	1	12.5%
2022	1	12.5%

Which technologies does Guangdong Institute Of Eco-environmental Science & Technology patent most?

B09C - RECLAMATION OF CONTAMINATED SOIL 4

C05D - INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE 3

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 3

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 2

C05G - MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS ; FERTILISERS CHARACTERISED BY THEIR FORM 2

C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 2

B01F - MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING 2

A01N - PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF ; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES ; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS 2

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 1

C22B - PRODUCTION AND REFINING OF METALS ; PRETREATMENT OF RAW MATERIALS 1

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 1

A01G - HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING 1

B28C - PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER 1

Y02W - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT 1

B28B - SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER 1

Top 15 of 15 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#31,841

Across all tracked assignees

Innovation Score

29.0 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 Guangdong Institute Of Eco-environmental Science & Technology hold?

Guangdong Institute Of Eco-environmental Science & Technology holds 8 US granted patents filed between 2017 and 2022, spanning 15 technology areas.

What is Guangdong Institute Of Eco-environmental Science & Technology's Innovation Score?

Guangdong Institute Of Eco-environmental Science & Technology has an Innovation Score of 29.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Guangdong Institute Of Eco-environmental Science & Technology focus on?

Guangdong Institute Of Eco-environmental Science & Technology's top technology area is B09C (RECLAMATION OF CONTAMINATED SOIL) with 4 patents. The company has filed patents in 15 CPC subclasses total.

Is Guangdong Institute Of Eco-environmental Science & Technology's patent filing rate increasing or decreasing?

Guangdong Institute Of Eco-environmental Science & Technology's recent filing velocity is -67% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Guangdong Institute Of Eco-environmental Science & Technology's patents?

Guangdong Institute Of Eco-environmental Science & Technology's patents average 10.1 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Guangdong Institute Of Eco-environmental Science & Technology 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

Guangdong's 8 grants land it in the top 71% 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 - Guangdong ranks #31,841 of 50,000. Top 50 holders
Most of this portfolio concentrates in B09C - see who else leads that technology area. B09C 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

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.