Where does SPX Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), SPX Corporation ranks #19,178 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 SPX Corporation hold?

SPX Corporation holds 15 US utility patents granted between 2015 and 2018, spanning 18 technology areas.

What is SPX Corporation's Innovation Score?

SPX Corporation has an Innovation Score of 33.4 out of 100 (44th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

SPX 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 SPX Corporation's patents?

SPX Corporation's patents average 14.7 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 SPX 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

SPX Corporation

Q: What technology areas does SPX Corporation focus on?

SPX Corporation's top technology area is F21W (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO Uses OR Applications OF Lighting Devices OR Systems) with 5 patents, ranking #146 of 722 assignees active in that subclass. Grants appear in 18 CPC subclasses total.

USPTO PatentsView assignee record - 15 granted patents across 18 technology areas, recorded in grant years 2015–2018. 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: F21W (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO Uses OR Applications OF Lighting Devices OR Systems).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, SPX ranks #19,178 of 49,997 tracked US assignees by granted-patent volume, with 15 patents across 18 technology areas.

#19,178
of 49,997 US assignees by volume: 44th percentile
by Innovation Score (33.4/100): 14.7
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R19178 · US Corporation #19,178 · 15 grants

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

GRANTS-MICRO 15 grants
MID-PACK #19,178/49,997
PHOTO-FINISH Soteria Battery…
CPC-FOCUS F21W · 18 areas
INNOV-THIN 33.4/100
CLAIMS-RICH 14.7 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Soteria Battery Innovation Group Inc. (±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 SPX’s 33.4 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 9.6 pts (29%) Velocity 0.0 pts (0%) Breadth 15.0 pts (45%) Claim depth 8.8 pts (26%)

Qualcomm Incorporated · highest

85
SPX · this assignee

33
3D Lighting… · lowest

7

What this shows SPX's Innovation Score is 33.4/100 (44th 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 SPX?

Each dot is one of SPX’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). SPX’s own 14.7 claims/patent is ABOVE the 14.2 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where SPX's grants concentrate

SPX Corporation is a focused PatentsView assignee: 18 CPC subclasses with 33.3% of grants classified under F21W (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO Uses OR Applications OF Lighting Devices OR Systems). Peak complete grant year is 2015 (7 grants) versus a trough of 2 in 2018. By volume, SPX sits between Soteria Battery Innovation Group Inc. and Sumida Components & Modules GMBH.

Soteria Battery I…

15
Space Data

15
Special Springs S…

15
Spur Concepts

15
ST Jude Medical L…

15
Statens Serum Ins…

15
Steelcloud

15
Sumida Components…

15
SPX ◀

15

What this shows SPX holds 15 patents at rank #19,134, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near SPX

By rank, the assignees closest to #19,134 in granted patent volume.

Leaders in F21W (Indexing Scheme Associated With Subclasses F21k)

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

SPX's Innovation Score vs. every tracked assignee

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

33 44th percentile higher than 44% 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 · 2015–2018

Grants by year

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

View data table

SPX Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	7	46.7%
2016	3	20.0%
2017	3	20.0%
2018	2	13.3%

Which technologies does SPX Corporation patent most?

F21W - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO Uses OR Applications OF Lighting Devices OR Systems 5

F21Y - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted 4

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 4

Y10T - Technical Subjects Covered BY Former US Classification 3

H04B - Transmission 2

F21S - Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors 2

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 2

B01F - Mixing, e.g. Dissolving, Emulsifying OR Dispersing 2

F04C - Rotary-piston, OR Oscillating-piston, Positive-displacement Machines FOR Liquids ; Rotary-piston, OR Oscillating-piston, Positive-displacement Pumps 1

F03C - Positive-displacement Engines Driven BY Liquids 1

F01C - Rotary-piston OR Oscillating-piston Machines OR Engines 1

G01J - Measurement OF Intensity, Velocity, Spectral Content, Polarisation, Phase OR Pulse Characteristics OF Infrared, Visible OR Ultraviolet LIGHT; COLORIMETRY; Radiation Pyrometry 1

G07B - Ticket-issuing APPARATUS; Fare-registering APPARATUS; Franking Apparatus 1

B64F - Ground OR Aircraft-carrier-deck Installations Specially Adapted FOR USE IN Connection With AIRCRAFT; Designing, Manufacturing, Assembling, Cleaning, Maintaining OR Repairing Aircraft, NOT Otherwise Provided FOR; Handling, Transporting, Testing OR Inspecting Aircraft Components, NOT Otherwise Provide 1

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

Top 15 of 18 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

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

SPX Corporation's lead technology class is F21W (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO Uses OR Applications OF Lighting Devices OR Systems), 33.3% of its portfolio - see every assignee active in that class. Explore F21W
Ranked #19,178 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare SPX Corporation against Soteria Battery Innovation Group Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 33.4/100 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.