USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Purpose Co., Ltd.

USPTO PatentsView assignee record - 20 granted patents across 22 technology areas, active 2015–2023. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F24H (FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

10.2

Avg claims per patent

+0%

5-year filing velocity

The verdict

Purpose holds 20 US patents across 22 technology areas, rank #14,849 of 50,000 tracked assignees.

#14,849
of 50,000 US assignees by volume: Top 40%
by Innovation Score (38.8/100): 10.2
avg claims per patent: +0%
filing velocity, last 5 yrs

Portfolio overview

Purpose Co., Ltd. has been granted 20 US utility patents between 2015 and 2023, placing Purpose Co., Ltd. at rank #14,849 across all assignees tracked by PlainPatent. This portfolio spans 22 distinct Cooperative Patent Classification (CPC) subclasses, averaging 10.2 claims per patent with primary concentration in F24H (FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL). As a Foreign Corporation, Purpose Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Purpose sits between PI Advanced Materials Co., Ltd. (20 patents, rank #14,845) and Patentcloud Corporation (20 patents, rank #14,853) - the closest US assignees by grant volume. The composite Innovation Score of 38.8/100 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 10 grants, compared with 10 in the 2015–2019 window, a +0% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. 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. Purpose Co., Ltd.'s 10.2 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 22 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Purpose Co., Ltd. against peers pursuing similar technology classes.

PI Advanced Mater…

20
Pmc-sierra

20
Pocared Diagnosti…

20
POLA Pharma

20
Pacific Industria…

20
Pandrol

20
Pascal Engineering

20
Patentcloud

20
Purpose ◀

20

What this shows Purpose holds 20 patents at rank #14,849, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Purpose

By rank, the assignees closest to #14,849 in granted patent volume.

Leaders in F24H (Fluid Heaters)

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

Purpose's Innovation Score vs. every tracked assignee

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

39 Top 40% higher than 60% 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 · 2015–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Purpose Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	15.0%
2016	2	10.0%
2017	3	15.0%
2018	1	5.0%
2019	1	5.0%
2020	2	10.0%
2021	3	15.0%
2022	2	10.0%
2023	3	15.0%

Which technologies does Purpose Co., Ltd. patent most?

F24H - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL 12

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 5

F23D - BURNERS 5

F24D - DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR 4

C12M - APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS 4

F23N - REGULATING OR CONTROLLING COMBUSTION 4

G05D - SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 2

F23L - SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS ; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES 2

F23K - FEEDING FUEL TO COMBUSTION APPARATUS 2

F23J - REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 2

F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 2

A61F - FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRS 2

B01D - SEPARATION 1

B01B - BOILING; BOILING APPARATUS ; ; EVAPORATION; EVAPORATION APPARATUS 1

F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 1

Top 15 of 22 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Growing

Where it ranks

Overall rank by patents

#14,849

Across all tracked assignees

Innovation Score

38.8 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 Purpose Co., Ltd. hold?

Purpose Co., Ltd. holds 20 US granted patents filed between 2015 and 2023, spanning 22 technology areas.

What is Purpose Co., Ltd.'s Innovation Score?

Purpose Co., Ltd. has an Innovation Score of 38.8 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Purpose Co., Ltd. focus on?

Purpose Co., Ltd.'s top technology area is F24H (FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL) with 12 patents. The company has filed patents in 22 CPC subclasses total.

Is Purpose Co., Ltd.'s patent filing rate increasing or decreasing?

Purpose Co., Ltd.'s recent filing velocity is +0% compared to the prior five-year period. The company is maintaining or growing its patent output.

What does claim depth mean for Purpose Co., Ltd.'s patents?

Purpose Co., Ltd.'s patents average 10.2 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Purpose 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

Purpose's 20 grants land it in the top 40% 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 - Purpose ranks #14,849 of 50,000. Top 50 holders
Most of this portfolio concentrates in F24H - see who else leads that technology area. F24H 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.