Where does Kemflo International Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Kemflo International Co., Ltd. ranks #32,232 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 Kemflo International Co., Ltd. hold?

Kemflo International Co., Ltd. holds 8 US utility patents granted between 2017 and 2025, spanning 7 technology areas.

What is Kemflo International Co., Ltd.'s Innovation Score?

Kemflo International Co., Ltd. has an Innovation Score of 43.3 out of 100 (top 28% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Kemflo International Co., Ltd. focus on?

Kemflo International Co., Ltd.'s top technology area is C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge) with 7 patents, ranking #208 of 1,366 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Is Kemflo International Co., Ltd.'s patent grant rate increasing or decreasing?

Kemflo International Co., Ltd.'s recent grant velocity is +300% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

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

Kemflo International Co., Ltd.'s patents average 10.6 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 Kemflo International 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Kemflo International Co., Ltd.

USPTO PatentsView assignee record - 8 granted patents across 7 technology areas, recorded in grant years 2017–2025. 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: C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Kemflo ranks #32,232 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 7 technology areas.

#32,232
of 49,997 US assignees by volume: Top 28%
by Innovation Score (43.3/100): 10.6
avg claims per patent: +300%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R32232 · Foreign Corporation #32,232 · 8 grants

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

GRANTS-MICRO 8 grants
MID-PACK #32,232/49,997
PHOTO-FINISH Kautex Maschinenbau
CPC-NARROW C02F · 7 areas
INNOV-PAR 43.3/100
CLAIMS-PAR 10.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +300% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kautex Maschinenbau GMBH (±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 Kemflo’s 43.3 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 7.6 pts (18%) Velocity 20.0 pts (46%) Breadth 9.4 pts (22%) Claim depth 6.4 pts (15%)

Qualcomm Incorporated · highest

85
Kemflo International · this assignee

43
3D Lighting… · lowest

7

What this shows Kemflo's Innovation Score is 43.3/100 (top 28% 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 Kemflo?

Each dot is one of Kemflo’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). Kemflo’s own 10.6 claims/patent is at or below the 17.5 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Kemflo's grants concentrate

Kemflo International Co., Ltd. is a focused PatentsView assignee: 7 CPC subclasses with 87.5% of grants classified under C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge). Peak complete grant year is 2023 (2 grants) versus a trough of 1 in 2017. By volume, Kemflo sits between Kautex Maschinenbau GMBH and Kibeam Learning, Inc..

Kemflo's three-year grant acceleration

Kemflo International Co., Ltd. shows 4 grants in 2022–2024 against only 0 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.

Kautex Maschinenb…

8
KBI Dongkook IND

8
KBP Biosciences

8
Keller Medical

8
Kenna Security

8
Kensey Nash

8
Kiana Analytics

8
Kibeam Learning

8
Kemflo Internatio… ◀

8

What this shows Kemflo holds 8 patents at rank #32,211, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kemflo

By rank, the assignees closest to #32,211 in granted patent volume.

Leaders in C02F (Treatment OF Water)

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

Kemflo's Innovation Score vs. every tracked assignee

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

43 Top 28% higher than 72% 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 · 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

Kemflo International Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	12.5%
2023	2	25.0%
2024	2	25.0%
2025partial year	3	37.5%

Which technologies does Kemflo International Co., Ltd. patent most?

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 7

B01D - Separation 5

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 1

B67B - Applying Closure Members TO Bottles Jars, OR Similar CONTAINERS; Opening Closed Containers 1

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 1

Y02A - Technologies FOR Adaptation TO Climate Change 1

B30B - Presses IN General 1

Top 7 of 7 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

Kemflo International Co., Ltd.'s patent record in context - here's where to go next.

Kemflo International Co., Ltd.'s lead technology class is C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge), 87.5% of its portfolio - see every assignee active in that class. Explore C02F
Ranked #32,232 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Kemflo International Co., Ltd. against Kautex Maschinenbau GMBH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 43.3/100 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.