Where does Weir Slurry Group, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Weir Slurry Group, Inc. ranks #16,510 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Weir Slurry Group, Inc. hold?

Weir Slurry Group, Inc. holds 18 US utility patents granted between 2016 and 2024, spanning 17 technology areas.

What is Weir Slurry Group, Inc.'s Innovation Score?

Weir Slurry Group, Inc. has an Innovation Score of 42.9 out of 100 (top 29% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Weir Slurry Group, Inc. focus on?

Weir Slurry Group, Inc.'s top technology area is F04D (Non-positive-displacement Pumps) with 7 patents, ranking #224 of 1,034 assignees active in that subclass. Grants appear in 17 CPC subclasses total.

Is Weir Slurry Group, Inc.'s patent grant rate increasing or decreasing?

Weir Slurry Group, Inc.'s recent grant velocity is +100% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Weir Slurry Group, Inc.'s patents?

Weir Slurry Group, Inc.'s patents average 17.6 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the Weir Slurry Group, Inc. patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

USPTO 2015–2025 USPTO PatentsView US Corporation

Weir Slurry Group, Inc.

USPTO PatentsView assignee record - 18 granted patents across 17 technology areas, recorded in grant years 2016–2024. 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: F04D (Non-positive-displacement Pumps).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Weir ranks #16,510 of 49,997 tracked US assignees by granted-patent volume, with 18 patents across 17 technology areas.

#16,510
of 49,997 US assignees by volume: Top 29%
by Innovation Score (42.9/100): 17.6
avg claims per patent: +100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R16510 · US Corporation #16,510 · 18 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 18 grants
MID-PACK #16,510/49,997
PHOTO-FINISH Wacker Chemical
CPC-FOCUS F04D · 17 areas
INNOV-PAR 42.9/100
CLAIMS-RICH 17.6 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Wacker Chemical AG (±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 Weir’s 42.9 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 10.2 pts (24%) Velocity 7.6 pts (18%) Breadth 14.6 pts (34%) Claim depth 10.5 pts (24%)

Qualcomm Incorporated · highest

85
Weir Slurry Group · this assignee

43
3D Lighting… · lowest

7

What this shows Weir's Innovation Score is 42.9/100 (top 29% 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.

Does more volume mean deeper claims for Weir?

Each dot is one of Weir’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). Weir’s own 17.6 claims/patent is ABOVE the 13.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Weir vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Weir's grants concentrate

Weir Slurry Group, Inc. is a focused PatentsView assignee: 17 CPC subclasses with 38.9% of grants classified under F04D (Non-positive-displacement Pumps). Peak complete grant year is 2022 (4 grants) versus a trough of 1 in 2016. By volume, Weir sits between Wittur Holding GMBH and World Wide Stationery Mfg. Co., Ltd..

Weir's three-year grant acceleration

Weir Slurry Group, Inc. shows 8 grants in 2022–2024 against only 7 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.

Wittur Holding

18
Wuxi Esiontech

18
Wacker Chemical

18
Wave Neuroscience

18
Wenzhou Mtlc Elec…

18
Winegard

18
Woodside Energy P…

18
World Wide Statio…

18
Weir Slurry Group ◀

18

What this shows Weir holds 18 patents at rank #16,512, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Weir

By rank, the assignees closest to #16,512 in granted patent volume.

Leaders in F04D (Non-positive-displacement Pumps)

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

Weir's Innovation Score vs. every tracked assignee

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

43 Top 29% higher than 71% of 49,997 US assignees

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

USPTO utility patent grants by year · 2016–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Weir Slurry Group, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	5.6%
2017	1	5.6%
2018	1	5.6%
2019	3	16.7%
2020	2	11.1%
2021	2	11.1%
2022	4	22.2%
2024	4	22.2%

Which technologies does Weir Slurry Group, Inc. patent most?

F04D - Non-positive-displacement Pumps 7

F16J - Pistons ; CYLINDERS; Sealings 5

C08L - Compositions OF Macromolecular Compounds 4

F05D - Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants 3

B02C - Crushing, Pulverising, OR Disintegrating IN GENERAL; Milling Grain 3

Y10T - Technical Subjects Covered BY Former US Classification 3

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 2

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 2

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 2

F02C - Gas-turbine PLANTS; AIR Intakes FOR Jet-propulsion PLANTS; Controlling Fuel Supply IN Air-breathing Jet-propulsion Plants 2

F01D - Non-positive Displacement Machines OR Engines, e.g. Steam Turbines 2

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 1

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 1

B25B - Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding 1

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 1

Top 15 of 17 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

Weir Slurry Group, Inc.'s patent record in context - here's where to go next.

Weir Slurry Group, Inc.'s lead technology class is F04D (Non-positive-displacement Pumps), 38.9% of its portfolio - see every assignee active in that class. Explore F04D
Ranked #16,510 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Weir Slurry Group, Inc. against Wittur Holding GMBH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.9/100 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

Compiled by PlainPatent, US Patent Intelligence Editorial Process · May 15, 2026

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.