USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Hengdian Group Tospo Lighting Co., Ltd.

USPTO PatentsView assignee record - 9 granted patents across 7 technology areas, active 2018–2025. 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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

5.8

Avg claims per patent

+100%

5-year filing velocity

The verdict

Hengdian holds 9 US patents across 7 technology areas, rank #28,986 of 50,000 tracked assignees.

#28,986
of 50,000 US assignees by volume: Top 53%
by Innovation Score (34.1/100): 5.8
avg claims per patent: +100%
filing velocity, last 5 yrs

Portfolio overview

Hengdian Group Tospo Lighting Co., Ltd. has been granted 9 US utility patents between 2018 and 2025, placing Hengdian Group Tospo Lighting Co., Ltd. at rank #28,986 across all assignees tracked by PlainPatent. This portfolio spans 7 distinct Cooperative Patent Classification (CPC) subclasses, averaging 5.8 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 Foreign Corporation, Hengdian Group Tospo Lighting Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Hengdian sits between Heimann Sensor Gmbh (9 patents, rank #28,982) and Hikma Pharmaceuticals Llc (9 patents, rank #28,990) - the closest US assignees by grant volume. The composite Innovation Score of 34.1/100 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 6 grants, compared with 3 in the 2015–2019 window, a +100% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The Foreign 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. Hengdian Group Tospo Lighting Co., Ltd.'s 5.8 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 7 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Hengdian Group Tospo Lighting Co., Ltd. against peers pursuing similar technology classes.

Heimann Sensor

9
Helius Medical

9
Helix Nanotechnol…

9
Helix Opco

9
Herrmans OY AB

9
Hettich Franke &…

9
Hiviz

9
Hikma Pharmaceuti…

9
Hengdian Group To… ◀

9

What this shows Hengdian holds 9 patents at rank #28,986, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hengdian

By rank, the assignees closest to #28,986 in granted patent volume.

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

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

Hengdian's Innovation Score vs. every tracked assignee

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

34 Top 53% higher than 47% 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 · 2018–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Hengdian Group Tospo Lighting Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	1	11.1%
2019	2	22.2%
2023	3	33.3%
2024	1	11.1%
2025	2	22.2%

Which technologies does Hengdian Group Tospo Lighting Co., Ltd. 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

F21S - NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS 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 4

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 3

F21W - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS 1

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 1

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 1

Top 7 of 7 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#28,986

Across all tracked assignees

Innovation Score

34.1 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 Hengdian Group Tospo Lighting Co., Ltd. hold?

Hengdian Group Tospo Lighting Co., Ltd. holds 9 US granted patents filed between 2018 and 2025, spanning 7 technology areas.

What is Hengdian Group Tospo Lighting Co., Ltd.'s Innovation Score?

Hengdian Group Tospo Lighting Co., Ltd. has an Innovation Score of 34.1 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hengdian Group Tospo Lighting Co., Ltd. focus on?

Hengdian Group Tospo Lighting Co., Ltd.'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 7 CPC subclasses total.

Is Hengdian Group Tospo Lighting Co., Ltd.'s patent filing rate increasing or decreasing?

Hengdian Group Tospo Lighting Co., Ltd.'s recent filing velocity is +100% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Hengdian Group Tospo Lighting Co., Ltd.'s patents?

Hengdian Group Tospo Lighting Co., Ltd.'s patents average 5.8 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Hengdian Group Tospo Lighting Co., Ltd. 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

Hengdian's 9 grants land it in the top 53% 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 - Hengdian ranks #28,986 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

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.