Where does Emefcy Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Emefcy Ltd. ranks #35,173 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 Emefcy Ltd. hold?

Emefcy Ltd. holds 7 US utility patents granted between 2015 and 2020, spanning 9 technology areas.

What is Emefcy Ltd.'s Innovation Score?

Emefcy Ltd. has an Innovation Score of 29.8 out of 100 (32nd 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 Emefcy Ltd. focus on?

Emefcy Ltd.'s top technology area is C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge) with 6 patents, ranking #245 of 1,366 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

Is Emefcy Ltd.'s patent grant rate increasing or decreasing?

Emefcy Ltd.'s recent grant velocity is -60% 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 Emefcy Ltd.'s patents?

Emefcy Ltd.'s patents average 20.0 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 Emefcy Ltd. 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 Foreign Corporation

Emefcy Ltd.

USPTO PatentsView assignee record - 7 granted patents across 9 technology areas, recorded in grant years 2015–2020. 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: C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Emefcy ranks #35,173 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 9 technology areas.

#35,173
of 49,997 US assignees by volume: 32nd percentile
by Innovation Score (29.8/100): 20.0
avg claims per patent: -60%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R35173 · Foreign Corporation #35,173 · 7 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-DENSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 7 grants
MID-PACK #35,173/49,997
PHOTO-FINISH Ellis Patents…
CPC-NARROW C02F · 9 areas
INNOV-THIN 29.8/100
CLAIMS-DENSE 20.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -60% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Ellis Patents (HOLDINGS) 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 Emefcy’s 29.8 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 7.2 pts (24%) Velocity 0.0 pts (0%) Breadth 10.6 pts (36%) Claim depth 12.0 pts (40%)

Qualcomm Incorporated · highest

85
Emefcy · this assignee

30
3D Lighting… · lowest

7

What this shows Emefcy's Innovation Score is 29.8/100 (32nd 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 Emefcy?

Each dot is one of Emefcy’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). Emefcy’s own 20.0 claims/patent is ABOVE the 14.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Emefcy's grants concentrate

Emefcy Ltd. is a focused PatentsView assignee: 9 CPC subclasses with 85.7% of grants classified under C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge). Peak complete grant year is 2015 (2 grants) versus a trough of 1 in 2016. By volume, Emefcy sits between Ellis Patents (HOLDINGS) Limited and Emonster Inc.

Ellis Patents (Ho…

7
Eloxx Pharmaceuti…

7
Elyse Enterprises

7
Embr Labs IP

7
Emfit OY

7
Emisense

7
Emmeci S P A

7
Emonster

7
Emefcy ◀

7

What this shows Emefcy holds 7 patents at rank #35,134, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Emefcy

By rank, the assignees closest to #35,134 in granted patent volume.

Leaders in C02F (Treatment OF Water)

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

Emefcy's Innovation Score vs. every tracked assignee

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

30 32nd percentile higher than 32% 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 · 2015–2020

Grants by year

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

View data table

Emefcy Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	28.6%
2016	1	14.3%
2019	2	28.6%
2020	2	28.6%

Which technologies does Emefcy Ltd. patent most?

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 6

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 5

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 4

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 4

C25B - Electrolytic OR Electrophoretic Processes FOR THE Production OF Compounds OR NON-METALS; Apparatus Therefor 2

B01D - Separation 2

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

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 1

Y02A - Technologies FOR Adaptation TO Climate Change 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

Emefcy Ltd.'s patent record in context - here's where to go next.

Emefcy Ltd.'s lead technology class is C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge), 85.7% of its portfolio - see every assignee active in that class. Explore C02F
Ranked #35,173 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Emefcy Ltd. against Ellis Patents (HOLDINGS) Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 29.8/100 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.