Where does Purple Line Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Purple Line Limited ranks #37,109 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 Purple Line Limited hold?

Purple Line Limited holds 7 US utility patents granted between 2019 and 2025, spanning 8 technology areas.

What is Purple Line Limited's Innovation Score?

Purple Line Limited has an Innovation Score of 37.5 out of 100 (top 43% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Purple Line Limited focus on?

Purple Line Limited's top technology area is B62D (Motor VEHICLES; Trailers) with 3 patents. Grants appear in 8 CPC subclasses total.

Is Purple Line Limited's patent grant rate increasing or decreasing?

Purple Line Limited's recent grant velocity is +300% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Purple Line Limited's patents?

Purple Line Limited's patents average 17.3 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 Purple Line Limited 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 Foreign Corporation

Purple Line Limited

USPTO PatentsView assignee record - 7 granted patents across 8 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: B62D (Motor VEHICLES; Trailers).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Purple ranks #37,109 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 8 technology areas.

#37,109
of 49,997 US assignees by volume: Top 43%
by Innovation Score (37.5/100): 17.3
avg claims per patent: +300%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R37109 · Foreign Corporation #37,109 · 7 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 7 grants
MID-PACK #37,109/49,997
PHOTO-FINISH Purafil
CPC-NARROW B62D · 8 areas
INNOV-THIN 37.5/100
CLAIMS-RICH 17.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +300% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Purafil, Inc. (±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
Purple Line · this assignee

38
3D Lighting… · lowest

7

What this shows Purple's Innovation Score is 37.5/100 (top 43% 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 Purple's grants concentrate

Purple Line Limited is a focused PatentsView assignee: 8 CPC subclasses with 42.9% of grants classified under B62D (Motor VEHICLES; Trailers). Peak complete grant year is 2024 (2 grants) versus a trough of 1 in 2019. By volume, Purple sits between Purafil, Inc. and Q-med AB.

Purple's three-year grant acceleration

Purple Line Limited shows 3 grants in 2022–2024 against only 2 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.

Purafil

7
Pure Imagination…

7
Purehoney

7
Purewine

7
Pursuit Vascular

7
Pyramid Computer

7
Q-bot

7
Q-med AB

7
Purple Line ◀

7

What this shows Purple holds 7 patents at rank #37,087, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Purple

By rank, the assignees closest to #37,087 in granted patent volume.

Leaders in B62D (Motor Vehicles)

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

Purple's Innovation Score vs. every tracked assignee

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

38 Top 43% higher than 57% 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

Purple Line Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	14.3%
2021	1	14.3%
2023	1	14.3%
2024	2	28.6%
2025partial year	2	28.6%

Which technologies does Purple Line Limited patent most?

B62D - Motor VEHICLES; Trailers 3

B60K - Arrangement OR Mounting OF Propulsion Units OR OF Transmissions IN VEHICLES; Arrangement OR Mounting OF Plural Diverse Prime-movers IN VEHICLES; Auxiliary Drives FOR VEHICLES; Instrumentation OR Dashboards FOR VEHICLES; Arrangements IN Connection With Cooling, AIR Intake, GAS Exhaust OR Fuel Supply 3

B60P - Vehicles Adapted FOR Load Transportation OR TO Transport, TO Carry, OR TO Comprise Special Loads OR Objects 2

E04H - Buildings OR Like Structures FOR Particular PURPOSES; Swimming OR Splash Baths OR POOLS; MASTS; FENCING; Tents OR Canopies, IN General 2

Y02T - Climate Change Mitigation Technologies Related TO Transportation 1

B60Y - Indexing Scheme Relating TO Aspects Cross-cutting Vehicle Technology 1

B60L - Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic Suspension OR Levitation FOR VEHICLES; Monitoring Operating Variables OF Electrically-propelled Vehicl 1

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 1

Top 8 of 8 technology areas

Where it ranks

Overall rank by patents

#37,109

of 49,997 tracked assignees

Innovation Score

37.5 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

Purple Line Limited's patent record in context - here's where to go next.

Purple Line Limited's lead technology class is B62D (Motor VEHICLES; Trailers), 42.9% of its portfolio - see every assignee active in that class. Explore B62D
Ranked #37,109 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Purple Line Limited against Purafil, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 37.5/100 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.