Where does Sioux Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sioux Corporation ranks #43,129 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 Sioux Corporation hold?

Sioux Corporation holds 6 US utility patents granted between 2015 and 2019, spanning 11 technology areas.

What is Sioux Corporation's Innovation Score?

Sioux Corporation has an Innovation Score of 27.1 out of 100 (23rd percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sioux Corporation focus on?

Sioux Corporation's top technology area is F24H (Fluid Heaters, e.g. Water OR AIR Heaters, Having Heat-generating Means, e.g. Heat Pumps, IN General) with 4 patents, ranking #65 of 303 assignees active in that subclass. Grants appear in 11 CPC subclasses total.

Is Sioux Corporation's patent grant rate increasing or decreasing?

Sioux Corporation's recent grant velocity is -100% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Sioux Corporation's patents?

Sioux Corporation's patents average 14.5 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 Sioux Corporation 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

Sioux Corporation

USPTO PatentsView assignee record - 6 granted patents across 11 technology areas, recorded in grant years 2015–2019. 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: F24H (Fluid Heaters, e.g. Water OR AIR Heaters, Having Heat-generating Means, e.g. Heat Pumps, IN General).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Sioux ranks #43,129 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 11 technology areas.

#43,129
of 49,997 US assignees by volume: 23rd percentile
by Innovation Score (27.1/100): 14.5
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R43129 · US Corporation #43,129 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 6 grants
LOWER-Q #43,129/49,997
PHOTO-FINISH Sina Robotics and…
CPC-FOCUS F24H · 11 areas
INNOV-THIN 27.1/100
CLAIMS-RICH 14.5 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Sina Robotics and Medical Innovators Co. Ltd (±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 Sioux’s 27.1 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 6.7 pts (25%) Velocity 0.0 pts (0%) Breadth 11.7 pts (43%) Claim depth 8.7 pts (32%)

Qualcomm Incorporated · highest

85
Sioux · this assignee

27
3D Lighting… · lowest

7

What this shows Sioux's Innovation Score is 27.1/100 (23rd 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.

Does more volume mean deeper claims for Sioux?

Each dot is one of Sioux’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). Sioux’s own 14.5 claims/patent is ABOVE the 10.3 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Sioux's grants concentrate

Sioux Corporation is a focused PatentsView assignee: 11 CPC subclasses with 66.7% of grants classified under F24H (Fluid Heaters, e.g. Water OR AIR Heaters, Having Heat-generating Means, e.g. Heat Pumps, IN General). Peak complete grant year is 2017 (3 grants) versus a trough of 1 in 2015. By volume, Sioux sits between Sina Robotics and Medical Innovators Co. Ltd and Site Saver, Inc..

Sina Robotics and…

6
Sinocare

6
Sinochem

6
Sinovia

6
Sirqul

6
Siser NA

6
Sisma S p A

6
Site Saver

6
Sioux ◀

6

What this shows Sioux holds 6 patents at rank #43,257, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sioux

By rank, the assignees closest to #43,257 in granted patent volume.

Leaders in F24H (Fluid Heaters)

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

Sioux's Innovation Score vs. every tracked assignee

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

27 23rd percentile higher than 23% 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 · 2015–2019

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Sioux Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	16.7%
2016	1	16.7%
2017	3	50.0%
2019	1	16.7%

Which technologies does Sioux Corporation patent most?

F24H - Fluid Heaters, e.g. Water OR AIR Heaters, Having Heat-generating Means, e.g. Heat Pumps, IN General 4

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 2

B08B - Cleaning IN GENERAL; Prevention OF Fouling IN General 2

G01K - Measuring TEMPERATURE; Measuring Quantity OF HEAT; Thermally-sensitive Elements NOT Otherwise Provided FOR 1

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume 1

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 1

B05B - Spraying APPARATUS; Atomising APPARATUS; Nozzles 1

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 1

F24D - Domestic- OR Space-heating Systems, e.g. Central Heating SYSTEMS; Domestic Hot-water Supply SYSTEMS; Elements OR Components Therefor 1

B62B - Hand-propelled Vehicles, e.g. Hand Carts OR PERAMBULATORS; Sledges 1

F28G - Cleaning OF Internal OR External Surfaces OF Heat-exchange OR Heat-transfer Conduits, e.g. Water Tubes OR Boilers 1

Top 11 of 11 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

Sioux Corporation's patent record in context - here's where to go next.

Sioux Corporation's lead technology class is F24H (Fluid Heaters, e.g. Water OR AIR Heaters, Having Heat-generating Means, e.g. Heat Pumps, IN General), 66.7% of its portfolio - see every assignee active in that class. Explore F24H
Ranked #43,129 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sioux Corporation against Sina Robotics and Medical Innovators Co. Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 27.1/100 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.