Where does Lennox Industries Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Lennox Industries Inc. ranks #727 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 Lennox Industries Inc. hold?

Lennox Industries Inc. holds 629 US utility patents granted between 2015 and 2025, spanning 80 technology areas.

What is Lennox Industries Inc.'s Innovation Score?

Lennox Industries Inc. has an Innovation Score of 63.1 out of 100 (top 2% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Lennox Industries Inc.'s patent grant rate increasing or decreasing?

Lennox Industries Inc.'s recent grant velocity is +12% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Lennox Industries Inc.'s patents?

Lennox Industries Inc.'s patents average 16.1 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 Lennox Industries Inc. 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

Lennox Industries Inc.

Q: What technology areas does Lennox Industries Inc. focus on?

Lennox Industries Inc.'s top technology area is F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening) with 376 patents. Grants appear in 80 CPC subclasses total.

USPTO PatentsView assignee record - 629 granted patents across 80 technology areas, recorded in grant years 2015–2025. 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: F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Lennox ranks #727 of 49,997 tracked US assignees by granted-patent volume, with 629 patents across 80 technology areas.

#727
of 49,997 US assignees by volume: Top 2%
by Innovation Score (63.1/100): 16.1
avg claims per patent: +12%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R727 · US Corporation #727 · 629 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-RICH · TYPE-USCORP · VEL-UP · BOOK-FULL

GRANTS-MID 629 grants
TOP-DECILE #727/49,997
PHOTO-FINISH Inventec (PUDONG)…
CPC-WIDE F24F · 80 areas
INNOV-STRONG 63.1/100
CLAIMS-RICH 16.1 claims/avg
TYPE-USCORP US Corporation
VEL-UP +12% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Inventec (PUDONG) Technology 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
Lennox Industries · this assignee

63
Omya International · near

63
SAS Institute · near

63
Mobileye Vision · near

63
Technion Research &… · near

63
3D Lighting… · lowest

7

What this shows Lennox's Innovation Score is 63.1/100 (top 2% 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.

How Lennox's grant cadence moved

Between 2020–2024, Lennox Industries Inc. received 325 grants versus 290 in 2015–2019 (+12% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2019 at 89 grants and bottomed in 2015 at 30. Lead class F24F accounts for 59.8% of the portfolio across 80 subclasses. Volume neighbours: Sikorsky Aircraft Corporation (#723) and Helen OF Troy Limited (#731).

Lennox's three-year grant acceleration

From 2019–2021 to 2022–2024, Lennox Industries Inc. moved from 215 to 199 grants (0.93x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,394. See the growth leaderboard.

Sikorsky Aircraft

631
Maxim Integrated…

630
Nestec

630
Inventec (Pudong)…

629
Lennox Industries ◀

629
Spotify AB

626
Inventio

623
Siemens Medical S…

623
Helen OF Troy

622

What this shows Lennox holds 629 patents at rank #727, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Lennox

By rank, the assignees closest to #727 in granted patent volume.

Leaders in F24F (Air-conditioning)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Lennox, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (63 here).

SAS Institute, Inc. 63 Omya International AG 63 Mobileye Vision Technologies Ltd. 63 Technion Research & Development Foundation Limited 63

Similar claim depth

Nearest assignees by average claims per patent (16.1 here).

Fresenius Medical Care Deutschland GmbH 16.1 avg Ethicon Endo-Surgery, Inc. 16.1 avg Faro Technologies, Inc. 16.1 avg United Technologies Corporation 16.1 avg

Lennox's Innovation Score vs. every tracked assignee

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

63 Top 2% higher than 98% 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 · 2015–2025

Grants by year

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

View data table

Lennox Industries Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	30	4.8%
2016	37	5.9%
2017	64	10.2%
2018	70	11.1%
2019	89	14.1%
2020	66	10.5%
2021	60	9.5%
2022	65	10.3%
2023	82	13.0%
2024	52	8.3%
2025partial year	14	2.2%

Which technologies does Lennox Industries Inc. patent most?

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 376

F25B - Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems 244

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 177

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 109

Y10T - Technical Subjects Covered BY Former US Classification 82

F24H - Fluid Heaters, e.g. Water OR AIR Heaters, Having Heat-generating Means, e.g. Heat Pumps, IN General 58

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 52

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 46

F24D - Domestic- OR Space-heating Systems, e.g. Central Heating SYSTEMS; Domestic Hot-water Supply SYSTEMS; Elements OR Components Therefor 36

F25D - REFRIGERATORS; Cold ROOMS; ICE-BOXES; Cooling OR Freezing Apparatus NOT Otherwise Provided FOR 36

F23D - Burners 35

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 28

F04D - Non-positive-displacement Pumps 27

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 27

H04W - Wireless Communication Networks 26

Top 15 of 80 technology areas

Where it ranks

Overall rank by patents

#727

of 49,997 tracked assignees

Innovation Score

63.1 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

Lennox Industries Inc.'s patent record in context - here's where to go next.

Lennox Industries Inc.'s lead technology class is F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening), 59.8% of its portfolio - see every assignee active in that class. Explore F24F
Ranked #727 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Lennox Industries Inc. against Sikorsky Aircraft Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 63.1/100 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.