Where does Qingdao Sanyi Plastic Machinery Co., Ltd. (CN) rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Qingdao Sanyi Plastic Machinery Co., Ltd. (CN) ranks #49,871 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 Qingdao Sanyi Plastic Machinery Co., Ltd. (CN) hold?

Qingdao Sanyi Plastic Machinery Co., Ltd. (CN) holds 5 US utility patents granted between 2020 and 2024, spanning 10 technology areas.

What is Qingdao Sanyi Plastic Machinery Co., Ltd. (CN)'s Innovation Score?

Qingdao Sanyi Plastic Machinery Co., Ltd. (CN) has an Innovation Score of 44.2 out of 100 (top 26% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Qingdao Sanyi Plastic Machinery Co., Ltd. (CN)'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Qingdao Sanyi Plastic Machinery Co., Ltd. (CN).

What does claim depth mean for Qingdao Sanyi Plastic Machinery Co., Ltd. (CN)'s patents?

Qingdao Sanyi Plastic Machinery Co., Ltd. (CN)'s patents average 11.4 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 Qingdao Sanyi Plastic Machinery Co., Ltd. (CN) 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

Qingdao Sanyi Plastic Machinery Co., Ltd. (CN)

Q: What technology areas does Qingdao Sanyi Plastic Machinery Co., Ltd. (CN) focus on?

Qingdao Sanyi Plastic Machinery Co., Ltd. (CN)'s top technology area is B32B (Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form) with 5 patents, ranking #756 of 3,088 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 10 technology areas, recorded in grant years 2020–2024. 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: B32B (Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Qingdao ranks #49,871 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 10 technology areas.

#49,871
of 49,997 US assignees by volume: Top 26%
by Innovation Score (44.2/100): 11.4
avg claims per patent

USPTO PatentsView assignee plate

Corpus R49871 · Foreign Corporation #49,871 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 5 grants
BOTTOM-DECILE #49,871/49,997
PHOTO-FINISH Qbic Technology
CPC-FOCUS B32B · 10 areas
INNOV-PAR 44.2/100
CLAIMS-PAR 11.4 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2020–2024 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Qbic Technology Co., Ltd. (±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.

How Qingdao’s 44.2 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 6.2 pts (14%) Velocity 20.0 pts (45%) Breadth 11.2 pts (25%) Claim depth 6.8 pts (15%)

Qualcomm Incorporated · highest

85
Qingdao Sanyi… · this assignee

44
3D Lighting… · lowest

7

What this shows Qingdao's Innovation Score is 44.2/100 (top 26% 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.

Does more volume mean deeper claims for Qingdao?

Each dot is one of Qingdao’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Qingdao’s own 11.4 claims/patent is ABOVE the 1.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Qingdao vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Qingdao's grants concentrate

Qingdao Sanyi Plastic Machinery Co., Ltd. (CN) is a focused PatentsView assignee: 10 CPC subclasses with 100% of grants classified under B32B (Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form). Peak complete grant year is 2022 (3 grants) versus a trough of 1 in 2020. By volume, Qingdao sits between Qbic Technology Co., Ltd. and QKM Technology (DONG GUAN) Co., Ltd.

Qingdao's three-year grant acceleration

Qingdao Sanyi Plastic Machinery Co., Ltd. (CN) shows 4 grants in 2022–2024 against only 1 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.

Qbic Technology

5
Qidong Vision Mou…

5
Qingdao Haier Inn…

5
Qingdao Lashbeaut…

5
Qingdao Topscomm…

5
Qingdao Zhengtao…

5
Qitele Group

5
QKM Technology (D…

5
Qingdao Sanyi Pla… ◀

5

What this shows Qingdao holds 5 patents at rank #49,872, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Qingdao

By rank, the assignees closest to #49,872 in granted patent volume.

Leaders in B32B (Layered Products)

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

Qingdao's Innovation Score vs. every tracked assignee

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

44 Top 26% higher than 74% 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 · 2020–2024

Grants by year

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

View data table

Qingdao Sanyi Plastic Machinery Co., Ltd. (CN) patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2020	1	20.0%
2022	3	60.0%
2024	1	20.0%

Which technologies does Qingdao Sanyi Plastic Machinery Co., Ltd. (CN) patent most?

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 5

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 3

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 3

B41F - Printing Machines OR Presses 2

B29K - Indexing Scheme Associated With Subclasses B29b, B29c OR B29d, Relating TO Moulding Materials OR TO Materials FOR ; Moulds, ; Reinforcements, Fillers OR Preformed Parts, e.g. Inserts 1

D21G - CALENDERS; Accessories FOR Paper-making Machines 1

B29D - Producing Particular Articles From Plastics OR From Substances IN A Plastic State 1

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 1

E04F - Finishing Work ON Buildings, e.g. Stairs, Floors 1

C08L - Compositions OF Macromolecular Compounds 1

Top 10 of 10 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Qingdao Sanyi Plastic Machinery Co., Ltd. (CN)'s patent record in context - here's where to go next.

Qingdao Sanyi Plastic Machinery Co., Ltd. (CN)'s lead technology class is B32B (Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form), 100% of its portfolio - see every assignee active in that class. Explore B32B
Ranked #49,871 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Qingdao Sanyi Plastic Machinery Co., Ltd. (CN) against Qbic Technology Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 44.2/100 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.