Where does Midrex Technologies, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Midrex Technologies, Inc. ranks #9,822 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 Midrex Technologies, Inc. hold?

Midrex Technologies, Inc. holds 32 US utility patents granted between 2015 and 2025, spanning 23 technology areas.

What is Midrex Technologies, Inc.'s Innovation Score?

Midrex Technologies, Inc. has an Innovation Score of 47.4 out of 100 (top 19% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Midrex Technologies, Inc. focus on?

Midrex Technologies, Inc.'s top technology area is C21B (Manufacture OF Iron OR Steel) with 30 patents, ranking #2 of 75 assignees active in that subclass. Grants appear in 23 CPC subclasses total.

Is Midrex Technologies, Inc.'s patent grant rate increasing or decreasing?

Midrex Technologies, Inc.'s recent grant velocity is -18% 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 Midrex Technologies, Inc.'s patents?

Midrex Technologies, Inc.'s patents average 14.8 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 Midrex Technologies, 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

Midrex Technologies, Inc.

USPTO PatentsView assignee record - 32 granted patents across 23 technology areas, recorded in grant years 2015–2025. 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: C21B (Manufacture OF Iron OR Steel).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Midrex ranks #9,822 of 49,997 tracked US assignees by granted-patent volume, with 32 patents across 23 technology areas.

#9,822
of 49,997 US assignees by volume: Top 19%
by Innovation Score (47.4/100): 14.8
avg claims per patent: -18%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R9822 · US Corporation #9,822 · 32 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · VEL-DOWN · BOOK-FULL

GRANTS-SMALL 32 grants
UPPER-Q #9,822/49,997
PHOTO-FINISH Maricap Oy
CPC-FOCUS C21B · 23 areas
INNOV-PAR 47.4/100
CLAIMS-RICH 14.8 claims/avg
TYPE-USCORP US Corporation
VEL-DOWN -18% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Maricap Oy (±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 Midrex’s 47.4 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 12.1 pts (25%) Velocity 9.5 pts (20%) Breadth 17.0 pts (36%) Claim depth 8.9 pts (19%)

Qualcomm Incorporated · highest

85
Advanced Drainage… · near

47
Andrew Wireless… · near

47
Cirrus Logic… · near

47
Kellogg · near

47
Midrex · this assignee

47
3D Lighting… · lowest

7

What this shows Midrex's Innovation Score is 47.4/100 (top 19% 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 Midrex?

Each dot is one of Midrex’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). Midrex’s own 14.8 claims/patent is at or below the 15.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Midrex's grants concentrate

Midrex Technologies, Inc. is a focused PatentsView assignee: 23 CPC subclasses with 93.8% of grants classified under C21B (Manufacture OF Iron OR Steel). Peak complete grant year is 2018 (6 grants) versus a trough of 1 in 2020. By volume, Midrex sits between Maricap Oy and Nihon Medi-physics Co., Ltd..

Midrex's three-year grant acceleration

Midrex Technologies, Inc. shows 10 grants in 2022–2024 against only 7 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.

Maricap Oy

32
Mati Therapeutics

32
Mccue

32
Meta

32
Minipumps

32
Nagano Keiki

32
NEX Team

32
Nihon Medi-physics

32
Midrex ◀

32

What this shows Midrex holds 32 patents at rank #9,824, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Midrex

By rank, the assignees closest to #9,824 in granted patent volume.

Leaders in C21B (Manufacture OF Iron OR Steel)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Midrex, neither rank-band nor same-CPC leaders (those blocks stay above). In C21B (Manufacture OF Iron OR Steel), Midrex ranks #2 of 75 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (47 here).

Cirrus Logic International Semiconductor Ltd. 47 Advanced Drainage Systems, Inc. 47 Kellogg Company 47 Andrew Wireless Systems GmbH 47

Midrex's Innovation Score vs. every tracked assignee

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

47 Top 19% higher than 81% 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 · 2015–2025

Grants by year

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

View data table

Midrex Technologies, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	15.6%
2017	3	9.4%
2018	6	18.8%
2019	3	9.4%
2020	1	3.1%
2021	3	9.4%
2022	1	3.1%
2023	3	9.4%
2024	6	18.8%
2025partial year	1	3.1%

Which technologies does Midrex Technologies, Inc. patent most?

C21B - Manufacture OF Iron OR Steel 30

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 28

F27D - Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace 14

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 8

F27B - Furnaces, Kilns, Ovens OR Retorts IN GENERAL; Open Sintering OR Like Apparatus 8

C22B - Production AND Refining OF Metals ; Pretreatment OF RAW Materials 5

C21C - Processing OF Pig-iron, e.g. Refining, Manufacture OF Wrought-iron OR STEEL; Treatment IN Molten State OF Ferrous Alloys 5

C10K - Purifying OR Modifying THE Chemical Composition OF Combustible Gases Containing Carbon Monoxide 2

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 2

C23F - Non-mechanical Removal OF Metallic Material From Surface ; Inhibiting Corrosion OF Metallic Material OR Incrustation IN GENERAL; Multi-step Processes FOR Surface Treatment OF Metallic Material Involving AT Least ONE Process Provided FOR IN Class C23 AND AT Least ONE Process Covered BY Subclass C21d 2

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 2

C10J - Production OF Producer GAS, Water-gas, Synthesis GAS From Solid Carbonaceous Material, OR Mixtures Containing These Gases ; Carburetting AIR OR Other Gases 1

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

F23D - Burners 1

C25B - Electrolytic OR Electrophoretic Processes FOR THE Production OF Compounds OR NON-METALS; Apparatus Therefor 1

Top 15 of 23 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

Midrex Technologies, Inc.'s patent record in context - here's where to go next.

Midrex Technologies, Inc.'s lead technology class is C21B (Manufacture OF Iron OR Steel), 93.8% of its portfolio - see every assignee active in that class. Explore C21B
Ranked #9,822 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Midrex Technologies, Inc. against Maricap Oy, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 47.4/100 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.