PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Chengdu Qinchuan Technology Development Co., Ltd.

USPTO PatentsView assignee record - 5 granted patents across 10 technology areas, recorded in grant years 2017–2022. 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: G01D (Measuring NOT Specially Adapted FOR A Specific VARIABLE; Arrangements FOR Measuring TWO OR More Variables NOT Covered IN A Single Other SUBCLASS; Tariff Metering APPARATUS; Measuring OR Testing NOT OT).

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The verdict

According to USPTO PatentsView, Chengdu ranks #45,623 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 10 technology areas.

#45,623
of 49,997 US assignees by volume
19th percentile
by Innovation Score (25.9/100)
10.6
avg claims per patent
+300%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R45623 · Foreign Corporation #45,623 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

  • GRANTS-MICRO 5 grants
  • BOTTOM-DECILE #45,623/49,997
  • PHOTO-FINISH Chemeor
  • CPC-FOCUS G01D · 10 areas
  • INNOV-THIN 25.9/100
  • CLAIMS-PAR 10.6 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • VEL-SURGE +300% vel
  • BOOK-FULL 10/10 fields

Nearest grant-volume peer: Chemeor, Inc. (±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 Chengdu’s 25.9 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 Chengdu

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

score

What this shows Chengdu's Innovation Score is 25.9/100 (19th 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 Chengdu?

Each dot is one of Chengdu’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). Chengdu’s own 10.6 claims/patent is at or below the 12.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Chengdu 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 4.95.05.055.05.05.1 05101520 Granted patents (volume) Avg claims / patent Chemeor, Inc. - 5, 17ChemeorChemetall U.S., Inc. - 5, 14.2Chemetall U SChengdu Analog Circuit Technology Inc - 5, 16Chengdu Analog Ci…Chengdu Puhuidao Smart Energy Technology Co., Ltd. - 5, 7.2Chengdu Puhuidao…Cheorwon Plasma Research Institute - 5, 12.4Cheorwon Plasma R…Chertoff Group, LLC - 5, 18.6Chertoff GroupChervon Intellectual Property Limited - 5, 8.4Chervon Intellect…Chetocorporation, S.A. - 5, 5.6ChetocorporationChengdu Qinchuan Technology Development Co., Ltd. - 5, 10.6Chengdu Qinchuan…
Chengdu vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Chengdu's grants concentrate

Chengdu Qinchuan Technology Development Co., Ltd. is a focused PatentsView assignee: 10 CPC subclasses with 60% of grants classified under G01D (Measuring NOT Specially Adapted FOR A Specific VARIABLE; Arrangements FOR Measuring TWO OR More Variables NOT Covered IN A Single Other SUBCLASS; Tariff Metering APPARATUS; Measuring OR Testing NOT OT). Peak complete grant year is 2020 (3 grants) versus a trough of 1 in 2017. By volume, Chengdu sits between Chemeor, Inc. and Chetocorporation, S.A..

Chengdu's three-year grant acceleration

Chengdu Qinchuan Technology Development Co., Ltd. shows 1 grants in 2022–2024 against only 3 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 Chengdu's volume?

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

patents

What this shows Chengdu holds 5 patents at rank #45,520, 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 Chengdu

By rank, the assignees closest to #45,520 in granted patent volume.

Leaders in G01D (Measuring NOT Specially Adapted FOR A Specific Variable)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Chengdu, neither rank-band nor same-CPC leaders (those blocks stay above). In G01D (Measuring NOT Specially Adapted FOR A Specific Variable), Chengdu ranks #367 of 1,381 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (26 here).

Walters Gardens, Inc. 26 Zhonghao Chenguang Research Institute of Chemiccal Industry Company Limited 26 Brownmed, Inc. 26 Harbor Innovations, LLC 26

Chengdu's Innovation Score vs. every tracked assignee

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

26 19th percentile higher than 19% 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 201720202022 1
USPTO utility patent grants by year · 2017–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table
Chengdu Qinchuan Technology Development Co., Ltd. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2017 1 20.0%
2020 3 60.0%
2022 1 20.0%

Which technologies does Chengdu Qinchuan Technology Development Co., Ltd. patent most?

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

Chengdu Qinchuan Technology Development Co., Ltd.'s patent record in context - here's where to go next.

  • Chengdu Qinchuan Technology Development Co., Ltd.'s lead technology class is G01D (Measuring NOT Specially Adapted FOR A Specific VARIABLE; Arrangements FOR Measuring TWO OR More Variables NOT Covered IN A Single Other SUBCLASS; Tariff Metering APPARATUS; Measuring OR Testing NOT OT), 60% of its portfolio - see every assignee active in that class. Explore G01D
  • Ranked #45,623 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Chengdu Qinchuan Technology Development Co., Ltd. against Chemeor, Inc., an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 25.9/100 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.