USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Hunan Brunp Recycling Technology Co., Ltd.

USPTO PatentsView assignee record - 77 granted patents across 45 technology areas, active 2017–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H01M (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

9.2

Avg claims per patent

+7500%

5-year filing velocity

The verdict

Hunan holds 77 US patents across 45 technology areas, rank #4,562 of 50,000 tracked assignees.

#4,562
of 50,000 US assignees by volume: Top 2%
by Innovation Score (64.3/100): 9.2
avg claims per patent: +7500%
filing velocity, last 5 yrs

Portfolio overview

Hunan Brunp Recycling Technology Co., Ltd. has been granted 77 US utility patents between 2017 and 2025, placing Hunan Brunp Recycling Technology Co., Ltd. at rank #4,562 across all assignees tracked by PlainPatent. This portfolio spans 45 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.2 claims per patent with primary concentration in H01M (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY). As a Foreign Corporation, Hunan Brunp Recycling Technology Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Hunan sits between GAF Energy Llc (77 patents, rank #4,558) and L3 Technologies, Inc. (77 patents, rank #4,566) - the closest US assignees by grant volume. The composite Innovation Score of 64.3/100 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 76 grants, compared with 1 in the 2015–2019 window, a +7500% 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. Hunan Brunp Recycling Technology Co., Ltd.'s 9.2 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 45 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Hunan Brunp Recycling Technology Co., Ltd. against peers pursuing similar technology classes.

GAF Energy

77
GE Oil & Gas Pres…

77
GLO AB

77
Hangzhou Sanhua R…

77
Idorsia Pharmaceu…

77
Isis Innovation

77
J S T MFG

77
L3

77
Hunan Brunp Recyc… ◀

77

What this shows Hunan holds 77 patents at rank #4,562, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hunan

By rank, the assignees closest to #4,562 in granted patent volume.

Leaders in H01M (Processes OR Means)

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

Hunan's Innovation Score vs. every tracked assignee

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

64 Top 2% higher than 98% 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 · 2017–2025

Grants by year

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

View data table

Hunan Brunp Recycling Technology Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	1.3%
2023	8	10.4%
2024	51	66.2%
2025	17	22.1%

Which technologies does Hunan Brunp Recycling Technology Co., Ltd. patent most?

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 60

Y02W - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT 34

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 32

C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS 25

C22B - PRODUCTION AND REFINING OF METALS ; PRETREATMENT OF RAW MATERIALS 25

C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 21

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 20

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 11

B09B - DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR 10

B01D - SEPARATION 6

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 5

B02C - CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 5

B03C - MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS 3

B07B - SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL 3

B03B - SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS 3

Top 15 of 45 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#4,562

Across all tracked assignees

Innovation Score

64.3 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 Hunan Brunp Recycling Technology Co., Ltd. hold?

Hunan Brunp Recycling Technology Co., Ltd. holds 77 US granted patents filed between 2017 and 2025, spanning 45 technology areas.

What is Hunan Brunp Recycling Technology Co., Ltd.'s Innovation Score?

Hunan Brunp Recycling Technology Co., Ltd. has an Innovation Score of 64.3 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hunan Brunp Recycling Technology Co., Ltd. focus on?

Hunan Brunp Recycling Technology Co., Ltd.'s top technology area is H01M (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY) with 60 patents. The company has filed patents in 45 CPC subclasses total.

Is Hunan Brunp Recycling Technology Co., Ltd.'s patent filing rate increasing or decreasing?

Hunan Brunp Recycling Technology Co., Ltd.'s recent filing velocity is +7500% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Hunan Brunp Recycling Technology Co., Ltd.'s patents?

Hunan Brunp Recycling Technology Co., Ltd.'s patents average 9.2 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Hunan Brunp Recycling Technology Co., Ltd. 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

Hunan's 77 grants land it in the top 2% 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 - Hunan ranks #4,562 of 50,000. Top 50 holders
Most of this portfolio concentrates in H01M - see who else leads that technology area. H01M 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.