PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Prinx Chengshan (QINGDAO) Industrial Research AND Design Co., Ltd.

USPTO PatentsView assignee record - 13 granted patents across 0 technology areas, recorded in grant years 2020–2022. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength.

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The verdict

According to USPTO PatentsView, Prinx ranks #21,631 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 0 technology areas.

#21,631
of 49,997 US assignees by volume
1st percentile
by Innovation Score (10.3/100)
1.0
avg claims per patent

USPTO PatentsView assignee plate

Corpus R21631 · Foreign Corporation #21,631 · 13 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-UNK · INNOV-LOW · CLAIMS-SPARSE · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

  • GRANTS-MICRO 13 grants
  • MID-PACK #21,631/49,997
  • PHOTO-FINISH Pozen
  • CPC-UNK CPC blank
  • INNOV-LOW 10.3/100
  • CLAIMS-SPARSE 1.0 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • SPAN-YRS 2020–2022 · 3y
  • BOOK-RICH 8/10 fields

Nearest grant-volume peer: Pozen 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 Prinx’s 10.3 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 Prinx

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

score

What this shows Prinx's Innovation Score is 10.3/100 (1st 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 Prinx?

Each dot is one of Prinx’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). Prinx’s own 1.0 claims/patent is at or below the 14.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Prinx 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 12.912.91313.1 010203040 Granted patents (volume) Avg claims / patent Pozen Inc. - 13, 14PozenPPI Pyungwha Co., Ltd - 13, 3.08PPI PyungwhaPratt & Miller Engineering AND Fabrication, LLC - 13, 18.54Pratt & Miller En…Princo Corp. - 13, 13.77PrincoProfoto AB - 13, 18Profoto ABPronova Biopharma Norge AS - 13, 32.23Pronova Biopharma…Punch Powertrain PSA E-transmissions NV - 13, 14.62Punch Powertrain…Pura Stainless LLC - 13, 2.46Pura StainlessPrinx Chengshan (QINGDAO) Industrial Research AND Design Co., Ltd. - 13, 1Prinx Chengshan (…
Prinx vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Prinx's grants concentrate

Prinx Chengshan (QINGDAO) Industrial Research AND Design Co., Ltd. is a focused PatentsView assignee: 0 CPC subclasses . Peak complete grant year is 2021 (11 grants) versus a trough of 1 in 2020. By volume, Prinx sits between Pozen Inc. and Pura Stainless LLC.

Prinx's three-year grant acceleration

Prinx Chengshan (QINGDAO) Industrial Research AND Design Co., Ltd. shows 1 grants in 2022–2024 against only 12 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 Prinx's volume?

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

patents

What this shows Prinx holds 13 patents at rank #21,597, 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 Prinx

By rank, the assignees closest to #21,597 in granted patent volume.

Prinx's Innovation Score vs. every tracked assignee

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

10 1st percentile higher than 1% 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

051015 202020212022 1
USPTO utility patent grants by year · 2020–2022

Grants by year

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

View data table
Prinx Chengshan (QINGDAO) Industrial Research AND Design Co., Ltd. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2020 1 7.7%
2021 11 84.6%
2022 1 7.7%

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

Prinx Chengshan (QINGDAO) Industrial Research AND Design Co., Ltd.'s patent record in context - here's where to go next.

  • Ranked #21,631 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Prinx Chengshan (QINGDAO) Industrial Research AND Design Co., Ltd. against Pozen Inc., an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 10.3/100 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.