USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Hangzhou Great Star Industrial Co., Ltd.

USPTO PatentsView assignee record - 132 granted patents across 51 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B25B (TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING).

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

Explore the portfolio See the ranking

132

Total patents granted

CPC technology areas

11.3

Avg claims per patent

+87%

5-year filing velocity

The verdict

Hangzhou holds 132 US patents across 51 technology areas, rank #2,894 of 50,000 tracked assignees.

#2,894
of 50,000 US assignees by volume: Top 9%
by Innovation Score (53.5/100): 11.3
avg claims per patent: +87%
filing velocity, last 5 yrs

Portfolio overview

Hangzhou Great Star Industrial Co., Ltd. has been granted 132 US utility patents between 2015 and 2025, placing Hangzhou Great Star Industrial Co., Ltd. at rank #2,894 across all assignees tracked by PlainPatent. This portfolio spans 51 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.3 claims per patent with primary concentration in B25B (TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING). As a Foreign Corporation, Hangzhou Great Star Industrial Co., Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Hangzhou sits between Datamax-o'neil Corporation (132 patents, rank #2,890) and Janome Sewing Machine Co., Ltd. (132 patents, rank #2,898) - the closest US assignees by grant volume. The composite Innovation Score of 53.5/100 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 86 grants, compared with 46 in the 2015–2019 window, a +87% 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. Hangzhou Great Star Industrial Co., Ltd.'s 11.3 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 51 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Hangzhou Great Star Industrial Co., Ltd. against peers pursuing similar technology classes.

Datamax-o'neil

132
Divergent

132
Encore Wire

132
Everdisplay Optro…

132
Hefei University…

132
Hutchinson Techno…

132
Instituto Mexican…

132
Janome Sewing Mac…

132
Hangzhou Great St… ◀

132

What this shows Hangzhou holds 132 patents at rank #2,894, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hangzhou

By rank, the assignees closest to #2,894 in granted patent volume.

Leaders in B25B (Tools OR Bench Devices)

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

Hangzhou's Innovation Score vs. every tracked assignee

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

54 Top 9% higher than 91% 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

Hangzhou Great Star Industrial Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	3.0%
2016	3	2.3%
2017	14	10.6%
2018	6	4.5%
2019	19	14.4%
2020	14	10.6%
2021	15	11.4%
2022	6	4.5%
2023	12	9.1%
2024	17	12.9%
2025	22	16.7%

Which technologies does Hangzhou Great Star Industrial Co., Ltd. patent most?

B25B - TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING 40

B26B - HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR 21

A47B - TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE 11

B25G - HANDLES FOR HAND IMPLEMENTS 7

B25F - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR 5

E04F - FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS 5

B23D - PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR 5

G01S - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES 5

B25C - HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS 4

B26D - CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING 4

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

F21L - LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION 4

G01C - MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY 4

G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS 4

Top 15 of 51 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#2,894

Across all tracked assignees

Innovation Score

53.5 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 Hangzhou Great Star Industrial Co., Ltd. hold?

Hangzhou Great Star Industrial Co., Ltd. holds 132 US granted patents filed between 2015 and 2025, spanning 51 technology areas.

What is Hangzhou Great Star Industrial Co., Ltd.'s Innovation Score?

Hangzhou Great Star Industrial Co., Ltd. has an Innovation Score of 53.5 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hangzhou Great Star Industrial Co., Ltd. focus on?

Hangzhou Great Star Industrial Co., Ltd.'s top technology area is B25B (TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING) with 40 patents. The company has filed patents in 51 CPC subclasses total.

Is Hangzhou Great Star Industrial Co., Ltd.'s patent filing rate increasing or decreasing?

Hangzhou Great Star Industrial Co., Ltd.'s recent filing velocity is +87% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Hangzhou Great Star Industrial Co., Ltd.'s patents?

Hangzhou Great Star Industrial Co., Ltd.'s patents average 11.3 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Hangzhou Great Star Industrial 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

Hangzhou's 132 grants land it in the top 9% 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 - Hangzhou ranks #2,894 of 50,000. Top 50 holders
Most of this portfolio concentrates in B25B - see who else leads that technology area. B25B 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.