USPTO 2015–2025 USPTO PatentsView US Corporation

Sparton Corporation

USPTO PatentsView assignee record - 6 granted patents across 10 technology areas, active 2017–2021. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H05K (PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

18.8

Avg claims per patent

-80%

5-year filing velocity

The verdict

Sparton holds 6 US patents across 10 technology areas, rank #43,324 of 50,000 tracked assignees.

#43,324
of 50,000 US assignees by volume: Top 70%
by Innovation Score (29.2/100): 18.8
avg claims per patent: -80%
filing velocity, last 5 yrs

Portfolio overview

Sparton Corporation has been granted 6 US utility patents between 2017 and 2021, placing Sparton Corporation at rank #43,324 across all assignees tracked by PlainPatent. This portfolio spans 10 distinct Cooperative Patent Classification (CPC) subclasses, averaging 18.8 claims per patent with primary concentration in H05K (PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS). As a US Corporation, Sparton Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Sparton sits between Spanolux N.v.—div. Balterio (6 patents, rank #43,320) and Special Aerospace Services, Llc (6 patents, rank #43,328) - the closest US assignees by grant volume. The composite Innovation Score of 29.2/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 1 grants, compared with 5 in the 2015–2019 window, a -80% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The US Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Sparton Corporation's 18.8 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 10 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Sparton Corporation against peers pursuing similar technology classes.

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.

Sparton's Innovation Score vs. every tracked assignee

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

29 Top 70% higher than 30% of 50,000 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

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#43,324

Across all 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?

Frequently Asked Questions

How many patents does Sparton Corporation hold?

Sparton Corporation holds 6 US granted patents filed 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. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

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. The company has filed patents in 10 CPC subclasses total.

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

Sparton Corporation's recent filing velocity is -80% compared to the prior five-year period. Filing 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 falls within the standard range, providing solid legal coverage.

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.

How to use this portfolio

Sparton's 6 grants land it in the top 70% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Sparton ranks #43,324 of 50,000. Top 50 holders
Most of this portfolio concentrates in H05K - see who else leads that technology area. H05K leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.