PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Estra Automotive Systems Co., Ltd.

USPTO PatentsView assignee record - 5 granted patents across 5 technology areas, recorded in grant years 2021–2025. 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: B60H (Arrangements OF Heating, Cooling, Ventilating OR Other Air-treating Devices Specially Adapted FOR Passenger OR Goods Spaces OF Vehicles).

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The verdict

According to USPTO PatentsView, Estra ranks #46,574 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 5 technology areas.

#46,574
of 49,997 US assignees by volume
12th percentile
by Innovation Score (23.5/100)
4.6
avg claims per patent

USPTO PatentsView assignee plate

Corpus R46574 · Foreign Corporation #46,574 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

  • GRANTS-MICRO 5 grants
  • BOTTOM-DECILE #46,574/49,997
  • PHOTO-FINISH Esspen
  • CPC-NARROW B60H · 5 areas
  • INNOV-THIN 23.5/100
  • CLAIMS-SPARSE 4.6 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • SPAN-YRS 2021–2025 · 5y
  • BOOK-RICH 9/10 fields

Nearest grant-volume peer: Esspen GMBH (±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 Estra’s 23.5 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 Estra

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

score

What this shows Estra's Innovation Score is 23.5/100 (12th 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 Estra?

Each dot is one of Estra’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). Estra’s own 4.6 claims/patent is at or below the 13.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Estra 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 Esspen GMBH - 5, 16.6EsspenEsta Apparatebau GMBH & Co. KG - 5, 5.4Esta Apparatebau…Esteyco S.A. - 5, 16.8EsteycoEsteyco S.A.P. - 5, 12Esteyco PEtat FRANCAIS—MINISTERE DE LA DEFENSE—DIRECTION Centrale DU Service DE Sante DES Armees - 5, 14.6Etat Francais—Min…Eternatear, Inc. - 5, 13.8EternatearEtta Biotech Co., Ltd. - 5, 10.2Etta BiotechEugen Forschner GMBH - 5, 14.4Eugen ForschnerEstra Automotive Systems Co., Ltd. - 5, 4.6Estra Automotive…
Estra vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Estra's grants concentrate

Estra Automotive Systems Co., Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 80% of grants classified under B60H (Arrangements OF Heating, Cooling, Ventilating OR Other Air-treating Devices Specially Adapted FOR Passenger OR Goods Spaces OF Vehicles). By volume, Estra sits between Esspen GMBH and Eugen Forschner GMBH.

Estra's three-year grant acceleration

Estra Automotive Systems Co., Ltd. shows 1 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.

Who files at Estra's volume?

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

patents

What this shows Estra holds 5 patents at rank #46,460, 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 Estra

By rank, the assignees closest to #46,460 in granted patent volume.

Leaders in B60H (Arrangements OF Heating)

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

Estra's Innovation Score vs. every tracked assignee

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

24 12th percentile higher than 12% 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 202120232025 3
USPTO utility patent grants by year · 2021–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table
Estra Automotive Systems Co., Ltd. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2021 1 20.0%
2023 1 20.0%
2025partial year 3 60.0%

Which technologies does Estra Automotive Systems 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

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

  • Estra Automotive Systems Co., Ltd.'s lead technology class is B60H (Arrangements OF Heating, Cooling, Ventilating OR Other Air-treating Devices Specially Adapted FOR Passenger OR Goods Spaces OF Vehicles), 80% of its portfolio - see every assignee active in that class. Explore B60H
  • Ranked #46,574 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Estra Automotive Systems Co., Ltd. against Esspen GMBH, an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 23.5/100 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.