USPTO 2015–2025 USPTO PatentsView US Corporation

Qualitrol Company Llc

USPTO PatentsView assignee record - 7 granted patents across 13 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G01R (MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

20.7

Avg claims per patent

-25%

5-year filing velocity

The verdict

Qualitrol holds 7 US patents across 13 technology areas, rank #37,118 of 50,000 tracked assignees.

#37,118
of 50,000 US assignees by volume: Top 23%
by Innovation Score (45.7/100): 20.7
avg claims per patent: -25%
filing velocity, last 5 yrs

Portfolio overview

Qualitrol Company Llc has been granted 7 US utility patents between 2015 and 2025, placing Qualitrol Company Llc at rank #37,118 across all assignees tracked by PlainPatent. This portfolio spans 13 distinct Cooperative Patent Classification (CPC) subclasses, averaging 20.7 claims per patent with primary concentration in G01R (MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES). As a US Corporation, Qualitrol Company Llc is one of the more focused assignees in the PatentsView dataset. By volume, Qualitrol sits between Qortek, Inc. (7 patents, rank #37,114) and Quantum Elctro Opto Systems Sdn Bhd. (7 patents, rank #37,122) - the closest US assignees by grant volume. The composite Innovation Score of 45.7/100 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 3 grants, compared with 4 in the 2015–2019 window, a -25% 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. Qualitrol Company Llc's 20.7 average claims per patent reflects complex, broadly scoped inventions that are difficult for competitors to design around, while concentration in 13 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Qualitrol Company Llc against peers pursuing similar technology classes.

Qortek

7
Quswami

7
Quaker Window Pro…

7
Qualitau

7
Quality IP Holdin…

7
Quanex Homeshield

7
Quantifind

7
Quantum Elctro Op…

7
Qualitrol ◀

7

What this shows Qualitrol holds 7 patents at rank #37,118, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Qualitrol

By rank, the assignees closest to #37,118 in granted patent volume.

Leaders in G01R (Measuring Electric Variables)

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

Qualitrol's Innovation Score vs. every tracked assignee

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

46 Top 23% higher than 77% 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 · 2015–2025

Grants by year

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

View data table

Qualitrol Company Llc patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	28.6%
2018	1	14.3%
2019	1	14.3%
2022	1	14.3%
2023	1	14.3%
2025	1	14.3%

Which technologies does Qualitrol Company Llc patent most?

G01R - MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 3

G06Q - INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR 3

G01K - MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR 3

H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 2

G05B - CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 2

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 2

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 2

G01D - MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR 2

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 2

G06F - ELECTRIC DIGITAL DATA PROCESSING 1

G06N - COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS 1

G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE 1

H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 1

Top 13 of 13 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Complex

Velocity Declining

Where it ranks

Overall rank by patents

#37,118

Across all tracked assignees

Innovation Score

45.7 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 Qualitrol Company Llc hold?

Qualitrol Company Llc holds 7 US granted patents filed between 2015 and 2025, spanning 13 technology areas.

What is Qualitrol Company Llc's Innovation Score?

Qualitrol Company Llc has an Innovation Score of 45.7 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Qualitrol Company Llc focus on?

Qualitrol Company Llc's top technology area is G01R (MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES) with 3 patents. The company has filed patents in 13 CPC subclasses total.

Is Qualitrol Company Llc's patent filing rate increasing or decreasing?

Qualitrol Company Llc's recent filing velocity is -25% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Qualitrol Company Llc's patents?

Qualitrol Company Llc's patents average 20.7 claims each. This indicates complex, broadly scoped patents that are harder for competitors to design around.

How is the Qualitrol Company Llc 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

Qualitrol's 7 grants land it in the top 23% 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 - Qualitrol ranks #37,118 of 50,000. Top 50 holders
Most of this portfolio concentrates in G01R - see who else leads that technology area. G01R 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.