Where does Spark Thermionics, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Spark Thermionics, Inc. ranks #18,136 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 Spark Thermionics, Inc. hold?

Spark Thermionics, Inc. holds 16 US utility patents granted between 2019 and 2024, spanning 9 technology areas.

What is Spark Thermionics, Inc.'s Innovation Score?

Spark Thermionics, Inc. has an Innovation Score of 46.3 out of 100 (top 21% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Spark Thermionics, Inc. focus on?

Spark Thermionics, Inc.'s top technology area is H01J (Electric Discharge Tubes OR Discharge Lamps) with 14 patents, ranking #152 of 1,076 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

Is Spark Thermionics, Inc.'s patent grant rate increasing or decreasing?

Spark Thermionics, Inc.'s recent grant velocity is +1400% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Spark Thermionics, Inc.'s patents?

Spark Thermionics, Inc.'s patents average 18.7 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 Spark Thermionics, 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

Spark Thermionics, Inc.

USPTO PatentsView assignee record - 16 granted patents across 9 technology areas, recorded in grant years 2019–2024. 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: H01J (Electric Discharge Tubes OR Discharge Lamps).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Spark ranks #18,136 of 49,997 tracked US assignees by granted-patent volume, with 16 patents across 9 technology areas.

#18,136
of 49,997 US assignees by volume: Top 21%
by Innovation Score (46.3/100): 18.7
avg claims per patent: +1400%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R18136 · US Corporation #18,136 · 16 grants

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

GRANTS-MICRO 16 grants
MID-PACK #18,136/49,997
PHOTO-FINISH Smiths Medical…
CPC-NARROW H01J · 9 areas
INNOV-PAR 46.3/100
CLAIMS-RICH 18.7 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +1400% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Smiths Medical International Limited (±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 Spark’s 46.3 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 9.8 pts (21%) Velocity 14.7 pts (32%) Breadth 10.6 pts (23%) Claim depth 11.2 pts (24%)

Qualcomm Incorporated · highest

85
Spark Thermionics · this assignee

46
3D Lighting… · lowest

7

What this shows Spark's Innovation Score is 46.3/100 (top 21% 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 Spark?

Each dot is one of Spark’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). Spark’s own 18.7 claims/patent is at or below the 19.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Spark's grants concentrate

Spark Thermionics, Inc. is a focused PatentsView assignee: 9 CPC subclasses with 87.5% of grants classified under H01J (Electric Discharge Tubes OR Discharge Lamps). Peak complete grant year is 2023 (5 grants) versus a trough of 1 in 2019. By volume, Spark sits between Smiths Medical International Limited and SunStone Information Defense, Inc..

Spark's three-year grant acceleration

Spark Thermionics, Inc. shows 11 grants in 2022–2024 against only 5 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.

Smiths Medical In…

16
Socure

16
Soluble Group

16
Soundmed

16
Sportsfield Intel…

16
St Louis Medical…

16
Starfire Industri…

16
Sunstone Informat…

16
Spark Thermionics ◀

16

What this shows Spark holds 16 patents at rank #18,147, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Spark

By rank, the assignees closest to #18,147 in granted patent volume.

Leaders in H01J (Electric Discharge Tubes OR Discharge Lamps)

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

Spark's Innovation Score vs. every tracked assignee

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

46 Top 21% higher than 79% 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 · 2019–2024

Grants by year

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

View data table

Spark Thermionics, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	6.3%
2020	2	12.5%
2021	2	12.5%
2022	2	12.5%
2023	5	31.3%
2024	4	25.0%

Which technologies does Spark Thermionics, Inc. patent most?

H01J - Electric Discharge Tubes OR Discharge Lamps 14

H10N - Electric Solid-state Devices NOT Otherwise Provided FOR 7

G21H - Obtaining Energy From Radioactive SOURCES; Applications OF Radiation From Radioactive Sources, NOT Otherwise Provided FOR; Utilising Cosmic Radiation 3

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 2

F24H - Fluid Heaters, e.g. Water OR AIR Heaters, Having Heat-generating Means, e.g. Heat Pumps, IN General 2

H02N - Electric Machines NOT Otherwise Provided FOR 2

F24D - Domestic- OR Space-heating Systems, e.g. Central Heating SYSTEMS; Domestic Hot-water Supply SYSTEMS; Elements OR Components Therefor 2

H10D - Inorganic Electric Semiconductor Devices 1

F23D - Burners 1

Top 9 of 9 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

Spark Thermionics, Inc.'s patent record in context - here's where to go next.

Spark Thermionics, Inc.'s lead technology class is H01J (Electric Discharge Tubes OR Discharge Lamps), 87.5% of its portfolio - see every assignee active in that class. Explore H01J
Ranked #18,136 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Spark Thermionics, Inc. against Smiths Medical International Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 46.3/100 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.