Where does Douglas Dynamics, L.L.C. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Douglas Dynamics, L.L.C. ranks #14,574 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 Douglas Dynamics, L.L.C. hold?

Douglas Dynamics, L.L.C. holds 20 US utility patents granted between 2015 and 2025, spanning 12 technology areas.

What is Douglas Dynamics, L.L.C.'s Innovation Score?

Douglas Dynamics, L.L.C. has an Innovation Score of 40.3 out of 100 (top 36% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Douglas Dynamics, L.L.C.'s patent grant rate increasing or decreasing?

Douglas Dynamics, L.L.C.'s recent grant velocity is +160% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Douglas Dynamics, L.L.C.'s patents?

Douglas Dynamics, L.L.C.'s patents average 16.3 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 Douglas Dynamics, L.L.C. 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

Douglas Dynamics, L.L.C.

Q: What technology areas does Douglas Dynamics, L.L.C. focus on?

Douglas Dynamics, L.L.C.'s top technology area is E01H (Street CLEANING; Cleaning OF Permanent WAYS; Cleaning BEACHES; Dispersing ; OR PREVENTING; FOG IN General ; Cleaning Street OR Railway Furniture OR Tunnel Walls) with 14 patents. Grants appear in 12 CPC subclasses total.

USPTO PatentsView assignee record - 20 granted patents across 12 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: E01H (Street CLEANING; Cleaning OF Permanent WAYS; Cleaning BEACHES; Dispersing ; OR PREVENTING; FOG IN General ; Cleaning Street OR Railway Furniture OR Tunnel Walls).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Douglas ranks #14,574 of 49,997 tracked US assignees by granted-patent volume, with 20 patents across 12 technology areas.

#14,574
of 49,997 US assignees by volume: Top 36%
by Innovation Score (40.3/100): 16.3
avg claims per patent: +160%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R14574 · US Corporation #14,574 · 20 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 20 grants
MID-PACK #14,574/49,997
PHOTO-FINISH Diamond Tech
CPC-FOCUS E01H · 12 areas
INNOV-PAR 40.3/100
CLAIMS-RICH 16.3 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +160% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Diamond Tech 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
Douglas Dynamics L L C · this assignee

40
3D Lighting… · lowest

7

What this shows Douglas's Innovation Score is 40.3/100 (top 36% 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 Douglas's grants concentrate

Douglas Dynamics, L.L.C. is a focused PatentsView assignee: 12 CPC subclasses with 70% of grants classified under E01H (Street CLEANING; Cleaning OF Permanent WAYS; Cleaning BEACHES; Dispersing ; OR PREVENTING; FOG IN General ; Cleaning Street OR Railway Furniture OR Tunnel Walls). Peak complete grant year is 2020 (4 grants) versus a trough of 1 in 2015. By volume, Douglas sits between Diamond Tech LLC and EBT Medical, Inc..

Douglas's three-year grant acceleration

Douglas Dynamics, L.L.C. shows 7 grants in 2022–2024 against only 6 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.

Diamond Tech

20
Diehl Aviation Gi…

20
Digital Diagnosti…

20
Discovery

20
Duality

20
Duerr Systems

20
E V Offshore

20
EBT Medical

20
Douglas Dynamics… ◀

20

What this shows Douglas holds 20 patents at rank #14,577, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Douglas

By rank, the assignees closest to #14,577 in granted patent volume.

Leaders in E01H (Street Cleaning)

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

Douglas's Innovation Score vs. every tracked assignee

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

40 Top 36% higher than 64% 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

Douglas Dynamics, L.L.C. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	5.0%
2016	1	5.0%
2017	1	5.0%
2018	2	10.0%
2020	4	20.0%
2021	2	10.0%
2022	4	20.0%
2023	3	15.0%
2025partial year	2	10.0%

Which technologies does Douglas Dynamics, L.L.C. patent most?

E01H - Street CLEANING; Cleaning OF Permanent WAYS; Cleaning BEACHES; Dispersing ; OR PREVENTING; FOG IN General ; Cleaning Street OR Railway Furniture OR Tunnel Walls 14

B01F - Mixing, e.g. Dissolving, Emulsifying OR Dispersing 4

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 4

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

B02C - Crushing, Pulverising, OR Disintegrating IN GENERAL; Milling Grain 2

E05D - Hinges OR Suspension Devices FOR Doors, Windows OR Wings 2

Y10T - Technical Subjects Covered BY Former US Classification 2

E01C - Construction OF, OR Surfaces FOR, Roads, Sports Grounds, OR THE LIKE; Machines OR Auxiliary Tools FOR Construction OR Repair 1

A01C - PLANTING; SOWING; Fertilising 1

B60Q - Arrangement OF Signalling OR Lighting Devices, THE Mounting OR Supporting Thereof OR Circuits Therefor, FOR Vehicles IN General 1

F21Y - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted 1

F21S - Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors 1

Top 12 of 12 technology areas

Where it ranks

Overall rank by patents

#14,574

of 49,997 tracked assignees

Innovation Score

40.3 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

Douglas Dynamics, L.L.C.'s patent record in context - here's where to go next.

Douglas Dynamics, L.L.C.'s lead technology class is E01H (Street CLEANING; Cleaning OF Permanent WAYS; Cleaning BEACHES; Dispersing ; OR PREVENTING; FOG IN General ; Cleaning Street OR Railway Furniture OR Tunnel Walls), 70% of its portfolio - see every assignee active in that class. Explore E01H
Ranked #14,574 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Douglas Dynamics, L.L.C. against Diamond Tech LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 40.3/100 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.