Where does Leco Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Leco Corporation ranks #4,297 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 Leco Corporation hold?

Leco Corporation holds 83 US utility patents granted between 2015 and 2024, spanning 20 technology areas.

What is Leco Corporation's Innovation Score?

Leco Corporation has an Innovation Score of 47.4 out of 100 (top 19% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Leco Corporation focus on?

Leco Corporation's top technology area is H01J (Electric Discharge Tubes OR Discharge Lamps) with 56 patents. Grants appear in 20 CPC subclasses total.

Is Leco Corporation's patent grant rate increasing or decreasing?

Leco Corporation's recent grant velocity is -54% 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 Leco Corporation's patents?

Leco Corporation's patents average 18.3 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 Leco Corporation 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

Leco Corporation

USPTO PatentsView assignee record - 83 granted patents across 20 technology areas, recorded in grant years 2015–2024. 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: H01J (Electric Discharge Tubes OR Discharge Lamps).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Leco ranks #4,297 of 49,997 tracked US assignees by granted-patent volume, with 83 patents across 20 technology areas.

#4,297
of 49,997 US assignees by volume: Top 19%
by Innovation Score (47.4/100): 18.3
avg claims per patent: -54%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R4297 · US Corporation #4,297 · 83 grants

GRANTS-SMALL · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 83 grants
TOP-DECILE #4,297/49,997
PHOTO-FINISH Gogo
CPC-FOCUS H01J · 20 areas
INNOV-PAR 47.4/100
CLAIMS-RICH 18.3 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -54% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Gogo LLC (±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
Francotyp-Postalia · near

47
Global Battery… · near

47
Leco · this assignee

47
National Defense… · near

47
Nippon Zoki… · near

47
3D Lighting… · lowest

7

What this shows Leco's Innovation Score is 47.4/100 (top 19% 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.

Where Leco's grants concentrate

Leco Corporation is a focused PatentsView assignee: 20 CPC subclasses with 67.5% of grants classified under H01J (Electric Discharge Tubes OR Discharge Lamps). Peak complete grant year is 2018 (14 grants) versus a trough of 2 in 2021. By volume, Leco sits between Gogo LLC and NHN Corporation.

Leco's three-year grant acceleration

Leco Corporation shows 15 grants in 2022–2024 against only 19 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.

Gogo

83
Hopkins Manufactu…

83
Incipio

83
Intematix

83
Materialise

83
Macdon Industries

83
National Yang-min…

83
NHN

83
Leco ◀

83

What this shows Leco holds 83 patents at rank #4,297, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Leco

By rank, the assignees closest to #4,297 in granted patent volume.

Leaders in H01J (Electric Discharge Tubes OR Discharge Lamps)

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

Assignees with similar portfolio profiles

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

Similar innovation score

Nearest assignees by Innovation Score (47 here).

Francotyp-Postalia GmbH 47 Nippon Zoki Pharmaceutical Co., Ltd. 47 National Defense Medical Center 47 Global Battery Solutions LLC 47

Similar claim depth

Nearest assignees by average claims per patent (18.3 here).

Acist Medical Systems Inc. 18.3 avg Southern Methodist University 18.3 avg Experian Information Solutions, Inc. 18.3 avg ZIH Corp. 18.3 avg

Leco's Innovation Score vs. every tracked assignee

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

47 Top 19% higher than 81% 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 · 2015–2024

Grants by year

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

View data table

Leco Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	10	12.0%
2016	13	15.7%
2017	12	14.5%
2018	14	16.9%
2019	8	9.6%
2020	9	10.8%
2021	2	2.4%
2022	5	6.0%
2023	4	4.8%
2024	6	7.2%

Which technologies does Leco Corporation patent most?

H01J - Electric Discharge Tubes OR Discharge Lamps 56

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 36

F27B - Furnaces, Kilns, Ovens OR Retorts IN GENERAL; Open Sintering OR Like Apparatus 11

F27D - Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace 6

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 6

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 3

B01L - Chemical OR Physical Laboratory Apparatus FOR General USE 2

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

G06F - Electric Digital Data Processing 2

G16C - Computational CHEMISTRY; CHEMOINFORMATICS; Computational Materials Science 1

G01T - Measurement OF Nuclear OR X-radiation 1

F23J - Removal OR Treatment OF Combustion Products OR Combustion RESIDUES; Flues 1

B24B - Machines, Devices, OR Processes FOR Grinding OR Polishing ; Dressing OR Conditioning OF Abrading SURFACES; Feeding OF Grinding, Polishing, OR Lapping Agents 1

B24D - Tools FOR Grinding, Buffing OR Sharpening 1

Top 15 of 20 technology areas

Where it ranks

Overall rank by patents

#4,297

of 49,997 tracked assignees

Innovation Score

47.4 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

Leco Corporation's patent record in context - here's where to go next.

Leco Corporation's lead technology class is H01J (Electric Discharge Tubes OR Discharge Lamps), 67.5% of its portfolio - see every assignee active in that class. Explore H01J
Ranked #4,297 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Leco Corporation against Gogo LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 47.4/100 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.