PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Arstroma Co., Ltd.

USPTO PatentsView assignee record - 5 granted patents across 5 technology areas, recorded in grant years 2018–2022. 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: B01D (Separation).

RSS updates for this company
Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Arstroma ranks #44,840 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 5 technology areas.

#44,840
of 49,997 US assignees by volume
13th percentile
by Innovation Score (23.9/100)
12.6
avg claims per patent
+300%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R44840 · Foreign Corporation #44,840 · 5 grants

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

  • GRANTS-MICRO 5 grants
  • LOWER-Q #44,840/49,997
  • PHOTO-FINISH ARO Biotherapeutics
  • CPC-NARROW B01D · 5 areas
  • INNOV-THIN 23.9/100
  • CLAIMS-RICH 12.6 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • VEL-SURGE +300% vel
  • BOOK-FULL 10/10 fields

Nearest grant-volume peer: ARO Biotherapeutics Company (±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 Arstroma’s 23.9 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 Arstroma

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

score

What this shows Arstroma's Innovation Score is 23.9/100 (13th 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 Arstroma?

Each dot is one of Arstroma’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). Arstroma’s own 12.6 claims/patent is at or below the 15.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Arstroma 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 010203040 Granted patents (volume) Avg claims / patent ARO Biotherapeutics Company - 5, 37ARO Biotherapeuti…Arobotech Systems, Inc. - 5, 18.8Arobotech SystemsArris Global Ltd. - 5, 15.8Arris GlobalARS Electronica Linz GMBH & Co. KG - 5, 12.2ARS Electronica L…Arterial Remodeling Technologies SA - 5, 13Arterial Remodeli…Arthrosi Therapeutics, Inc. - 5, 15Arthrosi Therapeu…ARTS - 5, 11.2ARTSArup Ventures Limited - 5, 18.6Arup VenturesArstroma Co., Ltd. - 5, 12.6Arstroma
Arstroma vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Arstroma's grants concentrate

Arstroma Co., Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 100% of grants classified under B01D (Separation). Peak complete grant year is 2021 (2 grants) versus a trough of 1 in 2018. By volume, Arstroma sits between ARO Biotherapeutics Company and Arup Ventures Limited.

Arstroma's three-year grant acceleration

Arstroma 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 Arstroma's volume?

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

patents

What this shows Arstroma holds 5 patents at rank #44,613, 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 Arstroma

By rank, the assignees closest to #44,613 in granted patent volume.

Leaders in B01D (Separation)

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

Arstroma's Innovation Score vs. every tracked assignee

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

24 13th percentile higher than 13% 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

0.511.522.5 2018202020212022 1
USPTO utility patent grants by year · 2018–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table
Arstroma Co., Ltd. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2018 1 20.0%
2020 1 20.0%
2021 2 40.0%
2022 1 20.0%

Which technologies does Arstroma Co., Ltd. patent most?

Top 5 of 5 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

Arstroma Co., Ltd.'s patent record in context - here's where to go next.

  • Arstroma Co., Ltd.'s lead technology class is B01D (Separation), 100% of its portfolio - see every assignee active in that class. Explore B01D
  • Ranked #44,840 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Arstroma Co., Ltd. against ARO Biotherapeutics Company, an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 23.9/100 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.