Where does Korea District Heating Corp. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Korea District Heating Corp. ranks #32,273 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 Korea District Heating Corp. hold?

Korea District Heating Corp. holds 8 US utility patents granted between 2016 and 2025, spanning 18 technology areas.

What is Korea District Heating Corp.'s Innovation Score?

Korea District Heating Corp. has an Innovation Score of 42.5 out of 100 (top 31% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Korea District Heating Corp.'s patent grant rate increasing or decreasing?

Korea District Heating Corp.'s recent grant velocity is -33% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Korea District Heating Corp.'s patents?

Korea District Heating Corp.'s patents average 10.9 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.

How is the Korea District Heating Corp. 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 2015–2025 USPTO PatentsView Foreign Corporation

Korea District Heating Corp.

Q: What technology areas does Korea District Heating Corp. focus on?

Korea District Heating Corp.'s top technology area is 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) with 3 patents. Grants appear in 18 CPC subclasses total.

USPTO PatentsView assignee record - 8 granted patents across 18 technology areas, recorded in grant years 2016–2025. 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: 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 Ferme).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Korea ranks #32,273 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 18 technology areas.

#32,273
of 49,997 US assignees by volume: Top 31%
by Innovation Score (42.5/100): 10.9
avg claims per patent: -33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R32273 · Foreign Corporation #32,273 · 8 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MICRO 8 grants
MID-PACK #32,273/49,997
PHOTO-FINISH Koning
CPC-FOCUS C12M · 18 areas
INNOV-PAR 42.5/100
CLAIMS-PAR 10.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -33% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Koning Corporation (±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
Korea District Heating · this assignee

42
3D Lighting… · lowest

7

What this shows Korea's Innovation Score is 42.5/100 (top 31% 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 Korea's grants concentrate

Korea District Heating Corp. is a focused PatentsView assignee: 18 CPC subclasses with 37.5% of grants classified under 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 Ferme). Peak complete grant year is 2024 (2 grants) versus a trough of 1 in 2016. By volume, Korea sits between Koning Corporation and Kupa, Inc..

Korea's three-year grant acceleration

Korea District Heating Corp. shows 2 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.

Koning

8
Koninklijke Assch…

8
Koolance

8
Koppert B V

8
Kormel

8
Krush

8
Kunming Institute…

8
Kupa

8
Korea District He… ◀

8

What this shows Korea holds 8 patents at rank #32,275, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Korea

By rank, the assignees closest to #32,275 in granted patent volume.

Leaders in C12M (Apparatus FOR Enzymology OR Microbiology)

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

Korea's Innovation Score vs. every tracked assignee

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

42 Top 31% higher than 69% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Korea District Heating Corp. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	12.5%
2018	1	12.5%
2019	1	12.5%
2024	2	25.0%
2025partial year	3	37.5%

Which technologies does Korea District Heating Corp. patent most?

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 3

B01D - Separation 3

G06Q - Information AND Communication Technology [ICT] Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory PURPOSES; Systems OR Methods Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory Purposes, NOT Otherwise Provided FOR 3

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 3

Y02C - Capture, Storage, Sequestration OR Disposal OF Greenhouse Gases [GHG] 2

C01F - Compounds OF THE Metals Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium, OR OF THE Rare-earth Metals 2

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 2

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 2

F17D - Pipe-line SYSTEMS; Pipe-lines 1

Y02A - Technologies FOR Adaptation TO Climate Change 1

Y10T - Technical Subjects Covered BY Former US Classification 1

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 1

G06F - Electric Digital Data Processing 1

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 1

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 1

Top 15 of 18 technology areas

Where it ranks

Overall rank by patents

#32,273

of 49,997 tracked assignees

Innovation Score

42.5 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

Korea District Heating Corp.'s patent record in context - here's where to go next.

Korea District Heating Corp.'s lead technology class is 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 Ferme), 37.5% of its portfolio - see every assignee active in that class. Explore C12M
Ranked #32,273 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Korea District Heating Corp. against Koning Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.5/100 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.