Where does Langdon Incorporated rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Langdon Incorporated ranks #41,347 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 Langdon Incorporated hold?

Langdon Incorporated holds 6 US utility patents granted between 2015 and 2019, spanning 2 technology areas.

What is Langdon Incorporated's Innovation Score?

Langdon Incorporated has an Innovation Score of 19.8 out of 100 (6th 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 Langdon Incorporated focus on?

Langdon Incorporated's top technology area is F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening) with 4 patents, ranking #244 of 885 assignees active in that subclass. Grants appear in 2 CPC subclasses total.

Is Langdon Incorporated's patent grant rate increasing or decreasing?

Langdon Incorporated's recent grant velocity is -100% 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 Langdon Incorporated's patents?

Langdon Incorporated's patents average 13.5 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 Langdon Incorporated 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

Langdon Incorporated

USPTO PatentsView assignee record - 6 granted patents across 2 technology areas, recorded in grant years 2015–2019. 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

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The verdict

According to USPTO PatentsView, Langdon ranks #41,347 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 2 technology areas.

#41,347
of 49,997 US assignees by volume: 6th percentile
by Innovation Score (19.8/100): 13.5
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R41347 · US Corporation #41,347 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-LOW · CLAIMS-RICH · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 6 grants
LOWER-Q #41,347/49,997
PHOTO-FINISH Lampe Holding B V
CPC-NARROW F24F · 2 areas
INNOV-LOW 19.8/100
CLAIMS-RICH 13.5 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Lampe Holding B.V. (±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 Langdon’s 19.8 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 6.7 pts (34%) Velocity 0.0 pts (0%) Breadth 5.0 pts (25%) Claim depth 8.1 pts (41%)

Qualcomm Incorporated · highest

85
Langdon Incorporated · this assignee

20
3D Lighting… · lowest

7

What this shows Langdon's Innovation Score is 19.8/100 (6th 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 Langdon?

Each dot is one of Langdon’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). Langdon’s own 13.5 claims/patent is ABOVE the 11.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Langdon's grants concentrate

Langdon Incorporated is a focused PatentsView assignee: 2 CPC subclasses with 66.7% of grants classified under F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening). Peak complete grant year is 2015 (2 grants) versus a trough of 1 in 2016. By volume, Langdon sits between Lampe Holding B.V. and Laser Elevations, LLC.

Lampe Holding B V

6
Lanard Toys

6
Lancer Systems

6
Land Rover

6
Language

6
Lappset Group Oy

6
Lapto

6
Laser Elevations

6
Langdon Incorpora… ◀

6

What this shows Langdon holds 6 patents at rank #41,408, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Langdon

By rank, the assignees closest to #41,408 in granted patent volume.

Leaders in F24F (Air-conditioning)

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

Langdon's Innovation Score vs. every tracked assignee

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

20 6th percentile higher than 6% 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 · 2015–2019

Grants by year

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

View data table

Langdon Incorporated patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	33.3%
2016	1	16.7%
2017	1	16.7%
2018	1	16.7%
2019	1	16.7%

Which technologies does Langdon Incorporated patent most?

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 4

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 4

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

Langdon Incorporated's patent record in context - here's where to go next.

Langdon Incorporated's lead technology class is F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening), 66.7% of its portfolio - see every assignee active in that class. Explore F24F
Ranked #41,347 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Langdon Incorporated against Lampe Holding B.V., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 19.8/100 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.