Where does Fourstar Group Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Fourstar Group Inc. ranks #5,009 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 Fourstar Group Inc. hold?

Fourstar Group Inc. holds 69 US utility patents granted between 2015 and 2025, spanning 18 technology areas.

What is Fourstar Group Inc.'s Innovation Score?

Fourstar Group Inc. has an Innovation Score of 44.9 out of 100 (top 24% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Fourstar Group Inc.'s patent grant rate increasing or decreasing?

Fourstar Group Inc.'s recent grant velocity is +243% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Fourstar Group Inc.'s patents?

Fourstar Group Inc.'s patents average 4.4 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 Fourstar Group Inc. 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

Fourstar Group Inc.

Q: What technology areas does Fourstar Group Inc. focus on?

Fourstar Group Inc.'s top technology area is H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General) with 6 patents, ranking #508 of 2,247 assignees active in that subclass. Grants appear in 18 CPC subclasses total.

USPTO PatentsView assignee record - 69 granted patents across 18 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: H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Fourstar ranks #5,009 of 49,997 tracked US assignees by granted-patent volume, with 69 patents across 18 technology areas.

#5,009
of 49,997 US assignees by volume: Top 24%
by Innovation Score (44.9/100): 4.4
avg claims per patent: +243%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R5009 · Foreign Corporation #5,009 · 69 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 69 grants
UPPER-Q #5,009/49,997
PHOTO-FINISH Dynatrace
CPC-FOCUS H05B · 18 areas
INNOV-PAR 44.9/100
CLAIMS-SPARSE 4.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +243% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Dynatrace 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
L&L Candle · near

45
Fourstar Group · this assignee

45
Rearden · near

45
Theranos IP · near

45
Voss Automotive · near

45
3D Lighting… · lowest

7

What this shows Fourstar's Innovation Score is 44.9/100 (top 24% 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 Fourstar's grants concentrate

Fourstar Group Inc. is a focused PatentsView assignee: 18 CPC subclasses with 8.7% of grants classified under H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General). Peak complete grant year is 2022 (12 grants) versus a trough of 1 in 2017. By volume, Fourstar sits between Dynatrace LLC and Hangzhou Great Star Tools Co., Ltd..

Fourstar's three-year grant acceleration

Fourstar Group Inc. shows 34 grants in 2022–2024 against only 18 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.

Dynatrace

69
Elasticsearch B V

69
Eaton Cummins Aut…

69
Endress+Hauser Pr…

69
Gravic

69
GRÜNenthal

69
Guangzhou Shirui

69
Hangzhou Great St…

69
Fourstar Group ◀

69

What this shows Fourstar holds 69 patents at rank #5,009, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Fourstar

By rank, the assignees closest to #5,009 in granted patent volume.

Leaders in H05B (Electric Heating)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Fourstar, neither rank-band nor same-CPC leaders (those blocks stay above). In H05B (Electric Heating), Fourstar ranks #508 of 2,247 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (45 here).

Theranos IP Company, LLC 45 Rearden, LLC 45 Voss Automotive GmbH 45 L&L Candle Company, LLC 45

Similar claim depth

Nearest assignees by average claims per patent (4.4 here).

NcStar, Inc. 4.4 avg Clover MFG. Co., Ltd. 4.5 avg Lifetime Brands, Inc. 4.5 avg Navajo Manufacturing Company, Inc. 4.4 avg

Fourstar's Innovation Score vs. every tracked assignee

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

45 Top 24% higher than 76% 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

Fourstar Group Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	4.3%
2016	6	8.7%
2017	1	1.4%
2019	4	5.8%
2020	5	7.2%
2021	9	13.0%
2022	12	17.4%
2023	10	14.5%
2024	12	17.4%
2025partial year	7	10.1%

Which technologies does Fourstar Group Inc. patent most?

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

G10L - Speech Analysis Techniques OR Speech SYNTHESIS; Speech RECOGNITION; Speech OR Voice Processing TECHNIQUES; Speech OR Audio Coding OR Decoding 5

G09F - DISPLAYING; ADVERTISING; SIGNS; Labels OR NAME-PLATES; Seals 4

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 3

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 3

H03F - Amplifiers 3

G10H - Electrophonic Musical INSTRUMENTS; Instruments IN Which THE Tones ARE Generated BY Electromechanical Means OR Electronic Generators, OR IN Which THE Tones ARE Synthesised From A Data Store 3

F21S - Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors 2

A47G - Household OR Table Equipment 2

Y10T - Technical Subjects Covered BY Former US Classification 2

H04R - Loudspeakers, Microphones, Gramophone Pick-ups OR Like Acoustic Electromechanical TRANSDUCERS; Deaf-aid SETS; Public Address Systems 2

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 1

A45F - Travelling OR Camp EQUIPMENT: Sacks OR Packs Carried ON THE Body 1

H04M - Telephonic Communication 1

B65B - Machines, Apparatus OR Devices FOR, OR Methods OF, Packaging Articles OR MATERIALS; Unpacking 1

Top 15 of 18 technology areas

Where it ranks

Overall rank by patents

#5,009

of 49,997 tracked assignees

Innovation Score

44.9 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

Fourstar Group Inc.'s patent record in context - here's where to go next.

Fourstar Group Inc.'s lead technology class is H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General), 8.7% of its portfolio - see every assignee active in that class. Explore H05B
Ranked #5,009 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Fourstar Group Inc. against Dynatrace LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 44.9/100 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.