Where does Sparton Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sparton Corporation ranks #43,250 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 Sparton Corporation hold?

Sparton Corporation holds 6 US utility patents granted between 2017 and 2021, spanning 10 technology areas.

What is Sparton Corporation's Innovation Score?

Sparton Corporation has an Innovation Score of 29.2 out of 100 (30th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Sparton Corporation's recent grant velocity is -80% 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 Sparton Corporation's patents?

Sparton Corporation's patents average 18.8 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 Sparton 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

Sparton Corporation

Q: What technology areas does Sparton Corporation focus on?

Sparton Corporation's top technology area is H05K (Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components) with 3 patents. Grants appear in 10 CPC subclasses total.

USPTO PatentsView assignee record - 6 granted patents across 10 technology areas, recorded in grant years 2017–2021. 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: H05K (Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Sparton ranks #43,250 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 10 technology areas.

#43,250
of 49,997 US assignees by volume: 30th percentile
by Innovation Score (29.2/100): 18.8
avg claims per patent: -80%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R43250 · US Corporation #43,250 · 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 #43,250/49,997
PHOTO-FINISH Spanolux —Div Balterio
CPC-FOCUS H05K · 10 areas
INNOV-THIN 29.2/100
CLAIMS-RICH 18.8 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -80% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Spanolux N.V.—Div. Balterio (±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.

Qualcomm Incorporated · highest

85
Lamb Weston · near

29
Dispersive Networks · near

29
Kichler Lighting · near

29
Sparton · this assignee

29
Syntheon 2 0 · near

29
3D Lighting… · lowest

7

What this shows Sparton's Innovation Score is 29.2/100 (30th 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.

Where Sparton's grants concentrate

Sparton Corporation is a focused PatentsView assignee: 10 CPC subclasses with 50% of grants classified under H05K (Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components). Peak complete grant year is 2017 (2 grants) versus a trough of 1 in 2019. By volume, Sparton sits between Spanolux N.V.—Div. Balterio and Special Aerospace Services, LLC.

Spanolux —Div Bal…

6
Spark Grills

6
Sparklepower

6
Sparta Systems

6
Sparx Smartpods

6
Sparxteq

6
Spec Arms

6
Special Aerospace…

6
Sparton ◀

6

What this shows Sparton holds 6 patents at rank #43,324, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sparton

By rank, the assignees closest to #43,324 in granted patent volume.

Leaders in H05K (Printed Circuits)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Sparton, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (29 here).

Dispersive Networks, Inc. 29 Kichler Lighting LLC 29 Lamb Weston, Inc. 29 Syntheon 2.0, LLC 29

Sparton's Innovation Score vs. every tracked assignee

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

29 30th percentile higher than 30% 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 · 2017–2021

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Sparton Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	2	33.3%
2018	2	33.3%
2019	1	16.7%
2021	1	16.7%

Which technologies does Sparton Corporation patent most?

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 3

H03F - Amplifiers 1

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 1

G10K - Sound-producing DEVICES; Methods OR Devices FOR Protecting Against, OR FOR Damping, Noise OR Other Acoustic Waves IN GENERAL; Acoustics NOT Otherwise Provided FOR 1

H03K - Pulse Technique 1

B63B - Ships OR Other Waterborne VESSELS; Equipment FOR Shipping 1

B63C - Launching, Hauling-out, OR Dry-docking OF VESSELS; Life-saving IN WATER; Equipment FOR Dwelling OR Working Under WATER; Means FOR Salvaging OR Searching FOR Underwater Objects 1

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

F17C - Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases 1

F41F - Apparatus FOR Launching Projectiles OR Missiles From Barrels, e.g. Cannons ; Launchers FOR Rockets OR TORPEDOES; Harpoon Guns 1

Top 10 of 10 technology areas

Where it ranks

Overall rank by patents

#43,250

of 49,997 tracked assignees

Innovation Score

29.2 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

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

Sparton Corporation's lead technology class is H05K (Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components), 50% of its portfolio - see every assignee active in that class. Explore H05K
Ranked #43,250 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sparton Corporation against Spanolux N.V.—Div. Balterio, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 29.2/100 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.