Where does Enrichment Technology Company Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Enrichment Technology Company Ltd. ranks #28,684 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 Enrichment Technology Company Ltd. hold?

Enrichment Technology Company Ltd. holds 9 US utility patents granted between 2016 and 2021, spanning 18 technology areas.

What is Enrichment Technology Company Ltd.'s Innovation Score?

Enrichment Technology Company Ltd. has an Innovation Score of 34.1 out of 100 (47th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Enrichment Technology Company Ltd.'s patent grant rate increasing or decreasing?

Enrichment Technology Company Ltd.'s recent grant velocity is -87% 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 Enrichment Technology Company Ltd.'s patents?

Enrichment Technology Company Ltd.'s patents average 18.6 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 Enrichment Technology Company 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

Enrichment Technology Company Ltd.

Q: What technology areas does Enrichment Technology Company Ltd. focus on?

Enrichment Technology Company Ltd.'s top technology area is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution) with 7 patents, ranking #1,663 of 5,963 assignees active in that subclass. Grants appear in 18 CPC subclasses total.

USPTO PatentsView assignee record - 9 granted patents across 18 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: Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Enrichment ranks #28,684 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 18 technology areas.

#28,684
of 49,997 US assignees by volume: 47th percentile
by Innovation Score (34.1/100): 18.6
avg claims per patent: -87%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R28684 · Foreign Corporation #28,684 · 9 grants

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

GRANTS-MICRO 9 grants
MID-PACK #28,684/49,997
PHOTO-FINISH Engineered Abrasives
CPC-FOCUS Y02E · 18 areas
INNOV-THIN 34.1/100
CLAIMS-RICH 18.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -87% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Engineered Abrasives, 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 Enrichment’s 34.1 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 8.0 pts (23%) Velocity 0.0 pts (0%) Breadth 15.0 pts (44%) Claim depth 11.1 pts (33%)

Qualcomm Incorporated · highest

85
Enrichment Technology · this assignee

34
3D Lighting… · lowest

7

What this shows Enrichment's Innovation Score is 34.1/100 (47th 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 Enrichment?

Each dot is one of Enrichment’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). Enrichment’s own 18.6 claims/patent is ABOVE the 10.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Enrichment's grants concentrate

Enrichment Technology Company Ltd. is a focused PatentsView assignee: 18 CPC subclasses with 77.8% of grants classified under Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution). Peak complete grant year is 2018 (3 grants) versus a trough of 1 in 2016. By volume, Enrichment sits between Engineered Abrasives, Inc. and EP Minerals LLC.

Engineered Abrasi…

9
Engineered Produc…

9
Engo Industries

9
Enhance

9
Enshu

9
Enumerix

9
EOS Holding

9
EP Minerals

9
Enrichment Techno… ◀

9

What this shows Enrichment holds 9 patents at rank #28,644, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Enrichment

By rank, the assignees closest to #28,644 in granted patent volume.

Leaders in Y02E (Reduction OF Greenhouse GAS [GHG] Emissions)

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

Enrichment's Innovation Score vs. every tracked assignee

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

34 47th percentile higher than 47% 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

Enrichment Technology Company Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	11.1%
2017	2	22.2%
2018	3	33.3%
2019	2	22.2%
2021	1	11.1%

Which technologies does Enrichment Technology Company Ltd. patent most?

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 7

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 6

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 2

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 2

H02K - Dynamo-electric Machines 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 1

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 1

Y10T - Technical Subjects Covered BY Former US Classification 1

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 1

Y04S - Systems Integrating Technologies Related TO Power Network Operation, Communication OR Information Technologies FOR Improving THE Electrical Power Generation, Transmission, Distribution, Management OR Usage, i.e. Smart Grids 1

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 1

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 1

F05D - Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants 1

B29K - Indexing Scheme Associated With Subclasses B29b, B29c OR B29d, Relating TO Moulding Materials OR TO Materials FOR ; Moulds, ; Reinforcements, Fillers OR Preformed Parts, e.g. Inserts 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

Enrichment Technology Company Ltd.'s patent record in context - here's where to go next.

Enrichment Technology Company Ltd.'s lead technology class is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution), 77.8% of its portfolio - see every assignee active in that class. Explore Y02E
Ranked #28,684 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Enrichment Technology Company Ltd. against Engineered Abrasives, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 34.1/100 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.