Where does Marsulex Environmental Technologies Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Marsulex Environmental Technologies Corporation ranks #24,755 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

What is Marsulex Environmental Technologies Corporation's Innovation Score?

Marsulex Environmental Technologies Corporation has an Innovation Score of 26.7 out of 100 (21st percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Marsulex Environmental Technologies Corporation focus on?

Marsulex Environmental Technologies Corporation's top technology area is B01D (Separation) with 11 patents, ranking #423 of 3,536 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

Is Marsulex Environmental Technologies Corporation's patent grant rate increasing or decreasing?

Marsulex Environmental Technologies Corporation's recent grant velocity is -17% 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 Marsulex Environmental Technologies Corporation's patents?

Marsulex Environmental Technologies Corporation's patents average 9.8 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.

USPTO 2015–2025 USPTO PatentsView US Corporation

Marsulex Environmental Technologies Corporation

Q: How many patents does Marsulex Environmental Technologies Corporation hold?

Marsulex Environmental Technologies Corporation holds 11 US utility patents granted between 2016 and 2021, spanning 12 technology areas.

Q: How is the Marsulex Environmental Technologies 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 PatentsView assignee record - 11 granted patents across 12 technology areas, recorded in grant years 2016–2021. 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: B01D (Separation).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Marsulex ranks #24,755 of 49,997 tracked US assignees by granted-patent volume, with 11 patents across 12 technology areas.

#24,755
of 49,997 US assignees by volume: 21st percentile
by Innovation Score (26.7/100): 9.8
avg claims per patent: -17%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R24755 · US Corporation #24,755 · 11 grants

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

GRANTS-MICRO 11 grants
MID-PACK #24,755/49,997
PHOTO-FINISH Manheim Investments
CPC-FOCUS B01D · 12 areas
INNOV-THIN 26.7/100
CLAIMS-PAR 9.8 claims/avg
TYPE-USCORP US Corporation
VEL-DOWN -17% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Manheim Investments, 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 Marsulex’s 26.7 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 8.6 pts (32%) Velocity 0.0 pts (0%) Breadth 12.2 pts (46%) Claim depth 5.9 pts (22%)

Qualcomm Incorporated · highest

85
Marsulex Environmental · this assignee

27
3D Lighting… · lowest

7

What this shows Marsulex's Innovation Score is 26.7/100 (21st 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 Marsulex?

Each dot is one of Marsulex’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). Marsulex’s own 9.8 claims/patent is at or below the 17.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Marsulex's grants concentrate

Marsulex Environmental Technologies Corporation is a focused PatentsView assignee: 12 CPC subclasses with 100% of grants classified under B01D (Separation). Peak complete grant year is 2021 (3 grants) versus a trough of 1 in 2017. By volume, Marsulex sits between Manheim Investments, Inc. and Massey University.

Manheim Investmen…

11
Marathonnorco Aer…

11
Markport

11
Marlow Industries

11
Masdar Institute…

11
Masergy Communica…

11
Mason Electric

11
Massey University

11
Marsulex Environm… ◀

11

What this shows Marsulex holds 11 patents at rank #24,786, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Marsulex

By rank, the assignees closest to #24,786 in granted patent volume.

Leaders in B01D (Separation)

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

Marsulex's Innovation Score vs. every tracked assignee

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

27 21st percentile higher than 21% 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 · 2016–2021

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Marsulex Environmental Technologies Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	18.2%
2017	1	9.1%
2018	2	18.2%
2019	1	9.1%
2020	2	18.2%
2021	3	27.3%

Which technologies does Marsulex Environmental Technologies Corporation patent most?

B01D - Separation 11

C01D - Compounds OF Alkali Metals, i.e. Lithium, Sodium, Potassium, Rubidium, Caesium, OR Francium 3

C01C - AMMONIA; CYANOGEN; Compounds Thereof 2

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

F23J - Removal OR Treatment OF Combustion Products OR Combustion RESIDUES; Flues 2

C05C - Nitrogenous Fertilisers 1

C05G - Mixtures OF Fertilisers Covered Individually BY Different Subclasses OF Class C05; Mixtures OF ONE OR More Fertilisers With Materials NOT Having A Specific Fertilising Activity, e.g. Pesticides, Soil-conditioners, Wetting Agents ; Fertilisers Characterised BY Their Form 1

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 1

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 1

C05D - Inorganic Fertilisers NOT Covered BY Subclasses C05b, C05C; Fertilisers Producing Carbon Dioxide 1

C01G - Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f 1

C22B - Production AND Refining OF Metals ; Pretreatment OF RAW Materials 1

Top 12 of 12 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

Marsulex Environmental Technologies Corporation's patent record in context - here's where to go next.

Marsulex Environmental Technologies Corporation's lead technology class is B01D (Separation), 100% of its portfolio - see every assignee active in that class. Explore B01D
Ranked #24,755 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Marsulex Environmental Technologies Corporation against Manheim Investments, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 26.7/100 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.