USPTO 2015–2025 USPTO PatentsView US Corporation

Quarkstar Llc

USPTO PatentsView assignee record - 122 granted patents across 19 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F21V (FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

122

Total patents granted

CPC technology areas

23.6

Avg claims per patent

-6%

5-year filing velocity

The verdict

Quarkstar holds 122 US patents across 19 technology areas, rank #3,105 of 50,000 tracked assignees.

#3,105
of 50,000 US assignees by volume: Top 16%
by Innovation Score (48.8/100): 23.6
avg claims per patent: -6%
filing velocity, last 5 yrs

Portfolio overview

Quarkstar Llc has been granted 122 US utility patents between 2015 and 2025, placing Quarkstar Llc at rank #3,105 across all assignees tracked by PlainPatent. This portfolio spans 19 distinct Cooperative Patent Classification (CPC) subclasses, averaging 23.6 claims per patent with primary concentration in F21V (FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR). As a US Corporation, Quarkstar Llc is one of the more focused assignees in the PatentsView dataset. By volume, Quarkstar sits between Morpho, Inc. (122 patents, rank #3,101) and Siltronic Ag (122 patents, rank #3,109) - the closest US assignees by grant volume. The composite Innovation Score of 48.8/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 59 grants, compared with 63 in the 2015–2019 window, a -6% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The US Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Quarkstar Llc's 23.6 average claims per patent reflects complex, broadly scoped inventions that are difficult for competitors to design around, while concentration in 19 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Quarkstar Llc against peers pursuing similar technology classes.

Morpho

122
Natera

122
Nextnav

122
Oiles

122
Saint-gobain Isov…

122
Smartsky Networks

122
Sensors Incorpora…

122
Siltronic

122
Quarkstar ◀

122

What this shows Quarkstar holds 122 patents at rank #3,105, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Quarkstar

By rank, the assignees closest to #3,105 in granted patent volume.

Leaders in F21V (Functional Features OR Details OF Lighting Devices OR Sys…)

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

Quarkstar's Innovation Score vs. every tracked assignee

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

49 Top 16% higher than 84% of 50,000 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

Quarkstar Llc patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	7	5.7%
2016	10	8.2%
2017	10	8.2%
2018	18	14.8%
2019	18	14.8%
2020	25	20.5%
2021	11	9.0%
2022	7	5.7%
2023	7	5.7%
2024	7	5.7%
2025	2	1.6%

Which technologies does Quarkstar Llc patent most?

F21V - FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 100

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 95

F21S - NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS 75

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 74

F21K - NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR 65

H10H - INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS 43

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 28

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 15

F21W - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS 4

G02F - OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 3

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 3

C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS 3

H10K - ORGANIC ELECTRIC SOLID-STATE DEVICES 2

A01G - HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING 2

Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE 2

Top 15 of 19 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Focused

Claim Depth Complex

Velocity Declining

Where it ranks

Overall rank by patents

#3,105

Across all tracked assignees

Innovation Score

48.8 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Quarkstar Llc hold?

Quarkstar Llc holds 122 US granted patents filed between 2015 and 2025, spanning 19 technology areas.

What is Quarkstar Llc's Innovation Score?

Quarkstar Llc has an Innovation Score of 48.8 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Quarkstar Llc focus on?

Quarkstar Llc's top technology area is F21V (FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR) with 100 patents. The company has filed patents in 19 CPC subclasses total.

Is Quarkstar Llc's patent filing rate increasing or decreasing?

Quarkstar Llc's recent filing velocity is -6% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Quarkstar Llc's patents?

Quarkstar Llc's patents average 23.6 claims each. This indicates complex, broadly scoped patents that are harder for competitors to design around.

How is the Quarkstar Llc 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.

How to use this portfolio

Quarkstar's 122 grants land it in the top 16% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Quarkstar ranks #3,105 of 50,000. Top 50 holders
Most of this portfolio concentrates in F21V - see who else leads that technology area. F21V leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.