USPTO 2015–2025 USPTO PatentsView US Corporation

LJ Star, Inc.

USPTO PatentsView assignee record - 7 granted patents across 10 technology areas, active 2016–2022. 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

Total patents granted

CPC technology areas

13.9

Avg claims per patent

+150%

5-year filing velocity

The verdict

LJ holds 7 US patents across 10 technology areas, rank #36,208 of 50,000 tracked assignees.

#36,208
of 50,000 US assignees by volume: Top 67%
by Innovation Score (30.0/100): 13.9
avg claims per patent: +150%
filing velocity, last 5 yrs

Portfolio overview

LJ Star, Inc. has been granted 7 US utility patents between 2016 and 2022, placing LJ Star, Inc. at rank #36,208 across all assignees tracked by PlainPatent. This portfolio spans 10 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.9 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, LJ Star, Inc. is one of the more focused assignees in the PatentsView dataset. By volume, LJ sits between Liposonix, Inc. (7 patents, rank #36,204) and LOBO Systems Limited (7 patents, rank #36,212) - the closest US assignees by grant volume. The composite Innovation Score of 30.0/100 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 5 grants, compared with 2 in the 2015–2019 window, a +150% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. LJ Star, Inc.'s 13.9 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 10 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark LJ Star, Inc. against peers pursuing similar technology classes.

Liposonix

7
Litec-

7
Livent USA

7
Liverpool JOHN Mo…

7
LN1

7
LN2 DB

7
LNJ Group

7
LOBO Systems

7
LJ Star ◀

7

What this shows LJ holds 7 patents at rank #36,208, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near LJ

By rank, the assignees closest to #36,208 in granted patent volume.

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

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

LJ's Innovation Score vs. every tracked assignee

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

30 Top 67% higher than 33% 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 · 2016–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

LJ Star, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	14.3%
2019	1	14.3%
2021	3	42.9%
2022	2	28.6%

Which technologies does LJ Star, Inc. 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 5

F16M - FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS 3

F16B - DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 3

G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME 2

H10H - INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS 1

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

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 1

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1

F23M - CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR 1

Top 10 of 10 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Velocity Accelerating

Where it ranks

Overall rank by patents

#36,208

Across all tracked assignees

Innovation Score

30.0 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 LJ Star, Inc. hold?

LJ Star, Inc. holds 7 US granted patents filed between 2016 and 2022, spanning 10 technology areas.

What is LJ Star, Inc.'s Innovation Score?

LJ Star, Inc. has an Innovation Score of 30.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does LJ Star, Inc. focus on?

LJ Star, Inc.'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 5 patents. The company has filed patents in 10 CPC subclasses total.

Is LJ Star, Inc.'s patent filing rate increasing or decreasing?

LJ Star, Inc.'s recent filing velocity is +150% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for LJ Star, Inc.'s patents?

LJ Star, Inc.'s patents average 13.9 claims each. This falls within the standard range, providing solid legal coverage.

How is the LJ Star, 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.

How to use this portfolio

LJ's 7 grants land it in the top 67% 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 - LJ ranks #36,208 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.