PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Walmsley Developments PTY Ltd

USPTO PatentsView assignee record - 6 granted patents across 1 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: F04B (Positive-displacement Machines FOR LIQUIDS; Pumps).

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The verdict

According to USPTO PatentsView, Walmsley ranks #44,024 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 1 technology areas.

#44,024
of 49,997 US assignees by volume
4th percentile
by Innovation Score (16.4/100)
4.7
avg claims per patent
+100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R44024 · Foreign Corporation #44,024 · 6 grants

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

  • GRANTS-MICRO 6 grants
  • LOWER-Q #44,024/49,997
  • PHOTO-FINISH WAH Hong Industrial
  • CPC-NARROW F04B · 1 areas
  • INNOV-LOW 16.4/100
  • CLAIMS-SPARSE 4.7 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • VEL-SURGE +100% vel
  • BOOK-FULL 10/10 fields

Nearest grant-volume peer: WAH Hong Industrial Corp. (±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 Walmsley’s 16.4 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 Walmsley

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

score

What this shows Walmsley's Innovation Score is 16.4/100 (4th 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 Walmsley?

Each dot is one of Walmsley’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). Walmsley’s own 4.7 claims/patent is at or below the 11.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Walmsley 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 WAH Hong Industrial Corp. - 6, 11.67WAH Hong Industri…Wakamoto Pharmaceutical Co., Ltd. - 6, 7.33Wakamoto Pharmace…Walker Filtration Ltd - 6, 17Walker FiltrationWallmek I KUNGÄLV AB - 6, 6.83Wallmek I KUNGÄLV…Walter Stauffenberg GMBH & Co. KG - 6, 12.17Walter Stauffenbe…Wasserwerk, Inc. - 6, 11.67WasserwerkWasteless Ltd. - 6, 16.5WastelessWatsco Ventures LLC - 6, 17.5Watsco VenturesWalmsley Developments PTY Ltd - 6, 4.67Walmsley Developm…
Walmsley vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Walmsley's grants concentrate

Walmsley Developments PTY Ltd is a focused PatentsView assignee: 1 CPC subclasses with 33.3% of grants classified under F04B (Positive-displacement Machines FOR LIQUIDS; Pumps). By volume, Walmsley sits between WAH Hong Industrial Corp. and Watsco Ventures LLC.

Walmsley's three-year grant acceleration

Walmsley Developments PTY 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 Walmsley's volume?

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

patents

What this shows Walmsley holds 6 patents at rank #43,989, 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 Walmsley

By rank, the assignees closest to #43,989 in granted patent volume.

Leaders in F04B (Positive-displacement Machines FOR Liquids)

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

Walmsley's Innovation Score vs. every tracked assignee

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

16 4th percentile higher than 4% 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

2 201920202023 2
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
Walmsley Developments PTY Ltd patent grants by year, 2015–2025
Year Patents Granted Share of Period
2019 2 33.3%
2020 2 33.3%
2023 2 33.3%

Which technologies does Walmsley Developments PTY Ltd patent most?

Top 1 of 1 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

Walmsley Developments PTY Ltd's patent record in context - here's where to go next.

  • Walmsley Developments PTY Ltd's lead technology class is F04B (Positive-displacement Machines FOR LIQUIDS; Pumps), 33.3% of its portfolio - see every assignee active in that class. Explore F04B
  • Ranked #44,024 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Walmsley Developments PTY Ltd against WAH Hong Industrial Corp., an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 16.4/100 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.