PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Zhejiang Sanou Machinery Co. Ltd.

USPTO PatentsView assignee record - 6 granted patents across 2 technology areas, recorded in grant years 2019–2023. 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: B23B (TURNING; Boring).

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The verdict

According to USPTO PatentsView, Zhejiang ranks #44,238 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 2 technology areas.

#44,238
of 49,997 US assignees by volume
7th percentile
by Innovation Score (20.8/100)
9.5
avg claims per patent
+0%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R44238 · Foreign Corporation #44,238 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

  • GRANTS-MICRO 6 grants
  • LOWER-Q #44,238/49,997
  • PHOTO-FINISH Zhejiang Linya
  • CPC-NARROW B23B · 2 areas
  • INNOV-THIN 20.8/100
  • CLAIMS-PAR 9.5 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • VEL-FLAT +0% vel
  • BOOK-FULL 10/10 fields

Nearest grant-volume peer: Zhejiang Linya 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 Zhejiang’s 20.8 Innovation Score adds up

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

Innovation-score neighbourhood around Zhejiang

Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.

score

What this shows Zhejiang's Innovation Score is 20.8/100 (7th percentile 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.

Source USPTO PatentsView, PlainPatent Innovation Score As of 2015–2025

Does more volume mean deeper claims for Zhejiang?

Each dot is one of Zhejiang’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). Zhejiang’s own 9.5 claims/patent is at or below the 10.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Zhejiang vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView. 2×2 strategic matrix plotting 9 entities by Granted patents (volume) (X) and Avg claims / patent (Y), with a crosshair dividing the plot into four quadrants. Volume + depthSelective & thoroughVolume over depthLean filer 5.96.06.066.06.06.1 05101520 Granted patents (volume) Avg claims / patent Zhejiang Linya Co., Ltd. - 6, 5.5Zhejiang LinyaZhejiang NHU Special Materials Co., Ltd. - 6, 15.67Zhejiang NHU Spec…Zhejiang Raytheon Technology Co., Ltd. - 6, 1.5Zhejiang Raytheon…Zhejiang Research Institute OF Chemical Industry Co., Ltd. - 6, 12.83Zhejiang Research…Zhejiang Xinsheng Electronic Technology Co., Ltd. - 6, 17.17Zhejiang Xinsheng…Zhongshan Hospital, Fudan University - 6, 10.83Zhongshan Hospita…Zhongshan Xiaolan Town Yaoshuoli Lighting Factory - 6, 1Zhongshan Xiaolan…Zhuhai Fast Image Products Co., Ltd. - 6, 13.5Zhuhai Fast Image…Zhejiang Sanou Machinery Co. Ltd. - 6, 9.5Zhejiang Sanou Ma…
Zhejiang vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Zhejiang's grants concentrate

Zhejiang Sanou Machinery Co. Ltd. is a focused PatentsView assignee: 2 CPC subclasses with 100% of grants classified under B23B (TURNING; Boring). Peak complete grant year is 2019 (3 grants) versus a trough of 1 in 2021. By volume, Zhejiang sits between Zhejiang Linya Co., Ltd. and Zhuhai Fast Image Products Co., Ltd..

Zhejiang's three-year grant acceleration

Zhejiang Sanou Machinery Co. Ltd. shows 2 grants in 2022–2024 against only 4 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.

Who files at Zhejiang's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows Zhejiang holds 6 patents at rank #44,188, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Source USPTO PatentsView, granted utility patents As of 2015–2025

Companies ranked near Zhejiang

By rank, the assignees closest to #44,188 in granted patent volume.

Leaders in B23B (Turning)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Zhejiang, neither rank-band nor same-CPC leaders (those blocks stay above). In B23B (Turning), Zhejiang ranks #77 of 490 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (21 here).

Saunders Archery Company 21 Dalian Czur Tech Co., Ltd 21 Kid Stuff Marketing, Inc. 21 Premier Marine, LLC 21

Zhejiang's Innovation Score vs. every tracked assignee

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

21 7th percentile higher than 7% of 49,997 US assignees

This assignee 0 100 every tracked assignee, bucketed by value

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

0.511.522.533.5 2019202120222023 1
USPTO utility patent grants by year · 2019–2023

Grants by year

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

View data table
Zhejiang Sanou Machinery Co. Ltd. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2019 3 50.0%
2021 1 16.7%
2022 1 16.7%
2023 1 16.7%

Which technologies does Zhejiang Sanou Machinery Co. Ltd. patent most?

Top 2 of 2 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

Zhejiang Sanou Machinery Co. Ltd.'s patent record in context - here's where to go next.

  • Zhejiang Sanou Machinery Co. Ltd.'s lead technology class is B23B (TURNING; Boring), 100% of its portfolio - see every assignee active in that class. Explore B23B
  • Ranked #44,238 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Zhejiang Sanou Machinery Co. Ltd. against Zhejiang Linya Co., Ltd., an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 20.8/100 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

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.