Where does LeafFilter North, LLC rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), LeafFilter North, LLC ranks #6,914 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 LeafFilter North, LLC hold?

LeafFilter North, LLC holds 48 US utility patents granted between 2019 and 2025, spanning 2 technology areas.

What is LeafFilter North, LLC's Innovation Score?

LeafFilter North, LLC has an Innovation Score of 25.5 out of 100 (18th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does LeafFilter North, LLC focus on?

LeafFilter North, LLC's top technology area is E04D (Roof COVERINGS; SKY-LIGHTS; GUTTERS; Roof-working Tools) with 19 patents, ranking #12 of 243 assignees active in that subclass. Grants appear in 2 CPC subclasses total.

Is LeafFilter North, LLC's patent grant rate increasing or decreasing?

LeafFilter North, LLC's recent grant velocity is +229% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for LeafFilter North, LLC's patents?

LeafFilter North, LLC's patents average 9.6 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 LeafFilter North, LLC 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 US Corporation

LeafFilter North, LLC

USPTO PatentsView assignee record - 48 granted patents across 2 technology areas, recorded in grant years 2019–2025. 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: E04D (Roof COVERINGS; SKY-LIGHTS; GUTTERS; Roof-working Tools).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Leaffilter ranks #6,914 of 49,997 tracked US assignees by granted-patent volume, with 48 patents across 2 technology areas.

#6,914
of 49,997 US assignees by volume: 18th percentile
by Innovation Score (25.5/100): 9.6
avg claims per patent: +229%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R6914 · US Corporation #6,914 · 48 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-PAR · TYPE-USCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 48 grants
UPPER-Q #6,914/49,997
PHOTO-FINISH Kuwait Institute…
CPC-NARROW E04D · 2 areas
INNOV-THIN 25.5/100
CLAIMS-PAR 9.6 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +229% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kuwait Institute FOR Scientific Research (±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 Leaffilter’s 25.5 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 13.4 pts (53%) Velocity 1.3 pts (5%) Breadth 5.0 pts (20%) Claim depth 5.7 pts (22%)

Qualcomm Incorporated · highest

85
Archimedes Controls · near

26
Art Design Works · near

26
Fyfe · near

26
Greyrock Energy · near

26
LeafFilter North · this assignee

26
3D Lighting… · lowest

7

What this shows Leaffilter's Innovation Score is 25.5/100 (18th 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 Leaffilter?

Each dot is one of Leaffilter’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). Leaffilter’s own 9.6 claims/patent is at or below the 15.5 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Leaffilter's grants concentrate

LeafFilter North, LLC is a focused PatentsView assignee: 2 CPC subclasses with 39.6% of grants classified under E04D (Roof COVERINGS; SKY-LIGHTS; GUTTERS; Roof-working Tools). Peak complete grant year is 2020 (16 grants) versus a trough of 2 in 2021. By volume, Leaffilter sits between Kuwait Institute FOR Scientific Research and Mips Tech, LLC.

Leaffilter's three-year grant acceleration

From 2019–2021 to 2022–2024, LeafFilter North, LLC moved from 25 to 5 grants (0.20x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

Kuwait Institute…

48
Kyoto Prefectural…

48
Lion Group

48
Lunit

48
Lightel

48
Luminara Worldwide

48
Mbda UK

48
Mips Tech

48
Leaffilter North ◀

48

What this shows LeafFilter holds 48 patents at rank #6,915, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near LeafFilter

By rank, the assignees closest to #6,915 in granted patent volume.

Leaders in E04D (Roof Coverings)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for LeafFilter, neither rank-band nor same-CPC leaders (those blocks stay above). In E04D (Roof Coverings), LeafFilter ranks #12 of 243 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (26 here).

Art Design Works LLC 26 Fyfe Co., LLC 26 Greyrock Energy, Inc. 26 Archimedes Controls Corp. 26

Leaffilter's Innovation Score vs. every tracked assignee

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

26 18th percentile higher than 18% 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 · 2019–2025

Grants by year

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

View data table

LeafFilter North, LLC patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	7	14.6%
2020	16	33.3%
2021	2	4.2%
2023	5	10.4%
2025partial year	18	37.5%

Which technologies does LeafFilter North, LLC patent most?

E04D - Roof COVERINGS; SKY-LIGHTS; GUTTERS; Roof-working Tools 19

G01B - Measuring Length, Thickness OR Similar Linear DIMENSIONS; Measuring ANGLES; Measuring AREAS; Measuring Irregularities OF Surfaces OR Contours 2

Top 2 of 2 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

LeafFilter North, LLC's patent record in context - here's where to go next.

LeafFilter North, LLC's lead technology class is E04D (Roof COVERINGS; SKY-LIGHTS; GUTTERS; Roof-working Tools), 39.6% of its portfolio - see every assignee active in that class. Explore E04D
Ranked #6,914 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare LeafFilter North, LLC against Kuwait Institute FOR Scientific Research, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 25.5/100 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.