Where does Katch Kan Holdings Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Katch Kan Holdings Ltd. ranks #14,091 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 Katch Kan Holdings Ltd. hold?

Katch Kan Holdings Ltd. holds 21 US utility patents granted between 2015 and 2023, spanning 10 technology areas.

What is Katch Kan Holdings Ltd.'s Innovation Score?

Katch Kan Holdings Ltd. has an Innovation Score of 32.1 out of 100 (40th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Katch Kan Holdings Ltd.'s patent grant rate increasing or decreasing?

Katch Kan Holdings Ltd.'s recent grant velocity is -69% 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 Katch Kan Holdings Ltd.'s patents?

Katch Kan Holdings Ltd.'s patents average 12.4 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 Katch Kan Holdings 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Katch Kan Holdings Ltd.

Q: What technology areas does Katch Kan Holdings Ltd. focus on?

Katch Kan Holdings Ltd.'s top technology area is E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells) with 14 patents, ranking #261 of 1,363 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

USPTO PatentsView assignee record - 21 granted patents across 10 technology areas, recorded in grant years 2015–2023. 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: E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Katch ranks #14,091 of 49,997 tracked US assignees by granted-patent volume, with 21 patents across 10 technology areas.

#14,091
of 49,997 US assignees by volume: 40th percentile
by Innovation Score (32.1/100): 12.4
avg claims per patent: -69%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R14091 · Foreign Corporation #14,091 · 21 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 21 grants
MID-PACK #14,091/49,997
PHOTO-FINISH Karus Therapeutics
CPC-FOCUS E21B · 10 areas
INNOV-THIN 32.1/100
CLAIMS-RICH 12.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -69% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Karus Therapeutics Limited (±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 Katch’s 32.1 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 10.7 pts (33%) Velocity 2.9 pts (9%) Breadth 11.2 pts (35%) Claim depth 7.4 pts (23%)

Qualcomm Incorporated · highest

85
Katch Kan Holdings · this assignee

32
3D Lighting… · lowest

7

What this shows Katch's Innovation Score is 32.1/100 (40th percentile 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 Katch?

Each dot is one of Katch’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). Katch’s own 12.4 claims/patent is ABOVE the 11.3 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Katch's grants concentrate

Katch Kan Holdings Ltd. is a focused PatentsView assignee: 10 CPC subclasses with 66.7% of grants classified under E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells). Peak complete grant year is 2017 (5 grants) versus a trough of 1 in 2015. By volume, Katch sits between Koken Co., Ltd. and Klaviyo, Inc..

Katch's three-year grant acceleration

Katch Kan Holdings Ltd. shows 3 grants in 2022–2024 against only 7 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.

Koken

21
Korea Airports

21
Korea Institute O…

21
Karus Therapeutics

21
Keep

21
Kennesaw State Un…

21
Kimber IP

21
Klaviyo

21
Katch Kan Holdings ◀

21

What this shows Katch holds 21 patents at rank #14,096, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Katch

By rank, the assignees closest to #14,096 in granted patent volume.

Leaders in E21B (Earth OR Rock Drilling)

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

Katch's Innovation Score vs. every tracked assignee

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

32 40th percentile higher than 40% 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 · 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

Katch Kan Holdings Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	4.8%
2016	2	9.5%
2017	5	23.8%
2018	3	14.3%
2019	5	23.8%
2021	2	9.5%
2022	1	4.8%
2023	2	9.5%

Which technologies does Katch Kan Holdings Ltd. patent most?

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 14

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 5

B08B - Cleaning IN GENERAL; Prevention OF Fouling IN General 4

Y10T - Technical Subjects Covered BY Former US Classification 2

E06B - Fixed OR Movable Closures FOR Openings IN Buildings, Vehicles, Fences OR Like Enclosures IN General, e.g. Doors, Windows, Blinds, Gates 2

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 2

Y02A - Technologies FOR Adaptation TO Climate Change 2

E01H - Street CLEANING; Cleaning OF Permanent WAYS; Cleaning BEACHES; Dispersing ; OR PREVENTING; FOG IN General ; Cleaning Street OR Railway Furniture OR Tunnel Walls 1

F17C - Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases 1

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 1

Top 10 of 10 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

Katch Kan Holdings Ltd.'s patent record in context - here's where to go next.

Katch Kan Holdings Ltd.'s lead technology class is E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells), 66.7% of its portfolio - see every assignee active in that class. Explore E21B
Ranked #14,091 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Katch Kan Holdings Ltd. against Koken Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 32.1/100 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.