Where does E-link Plastic & Metal Industrial Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), E-link Plastic & Metal Industrial Co., Ltd. ranks #8,191 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 E-link Plastic & Metal Industrial Co., Ltd. hold?

E-link Plastic & Metal Industrial Co., Ltd. holds 39 US utility patents granted between 2019 and 2025, spanning 6 technology areas.

What is E-link Plastic & Metal Industrial Co., Ltd.'s Innovation Score?

E-link Plastic & Metal Industrial Co., Ltd. has an Innovation Score of 29.5 out of 100 (31st percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is E-link Plastic & Metal Industrial Co., Ltd.'s patent grant rate increasing or decreasing?

E-link Plastic & Metal Industrial Co., Ltd.'s recent grant velocity is +650% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for E-link Plastic & Metal Industrial Co., Ltd.'s patents?

E-link Plastic & Metal Industrial Co., Ltd.'s patents average 4.7 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 E-link Plastic & Metal Industrial Co., 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

E-link Plastic & Metal Industrial Co., Ltd.

Q: What technology areas does E-link Plastic & Metal Industrial Co., Ltd. focus on?

E-link Plastic & Metal Industrial Co., Ltd.'s top technology area is A61J (Containers Specially Adapted FOR Medical OR Pharmaceutical PURPOSES; Devices OR Methods Specially Adapted FOR Bringing Pharmaceutical Products Into Particular Physical OR Administering FORMS; Devices FOR Administering Food OR Medicines ORALLY; Baby COMFORTERS; Devices FOR Receiving Spittle) with 10 patents, ranking #92 of 903 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

USPTO PatentsView assignee record - 39 granted patents across 6 technology areas, recorded in grant years 2019–2025. 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: A61J (Containers Specially Adapted FOR Medical OR Pharmaceutical PURPOSES; Devices OR Methods Specially Adapted FOR Bringing Pharmaceutical Products Into Particular Physical OR Administering FORMS; Devices ).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, E-link ranks #8,191 of 49,997 tracked US assignees by granted-patent volume, with 39 patents across 6 technology areas.

#8,191
of 49,997 US assignees by volume: 31st percentile
by Innovation Score (29.5/100): 4.7
avg claims per patent: +650%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8191 · Foreign Corporation #8,191 · 39 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 39 grants
UPPER-Q #8,191/49,997
PHOTO-FINISH Deep Science
CPC-NARROW A61J · 6 areas
INNOV-THIN 29.5/100
CLAIMS-SPARSE 4.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +650% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Deep Science, LLC (±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 E-link’s 29.5 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 12.7 pts (43%) Velocity 5.3 pts (18%) Breadth 8.7 pts (29%) Claim depth 2.8 pts (9%)

Qualcomm Incorporated · highest

85
E-link Plastic &… · this assignee

29
Arteriors Home · near

29
Garant GP · near

29
Rinat Neuroscience · near

29
Xianyang Caihong… · near

29
3D Lighting… · lowest

7

What this shows E-link's Innovation Score is 29.5/100 (31st 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 E-link?

Each dot is one of E-link’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). E-link’s own 4.7 claims/patent is at or below the 12.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where E-link's grants concentrate

E-link Plastic & Metal Industrial Co., Ltd. is a focused PatentsView assignee: 6 CPC subclasses with 25.6% of grants classified under A61J (Containers Specially Adapted FOR Medical OR Pharmaceutical PURPOSES; Devices OR Methods Specially Adapted FOR Bringing Pharmaceutical Products Into Particular Physical OR Administering FORMS; Devices ). Peak complete grant year is 2020 (8 grants) versus a trough of 3 in 2024. By volume, E-link sits between Dongjin Semichem Co., Ltd. and Everlight Electronics Co., Ltd..

E-link's three-year grant acceleration

E-link Plastic & Metal Industrial Co., Ltd. shows 15 grants in 2022–2024 against only 19 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.

Dongjin Semichem

39
Dsm&t

39
Deep Science

39
Dick's Sporting G…

39
Eight Holdings

39
Espressif Systems…

39
Eternal Plant Boi…

39
Everlight

39
E-link Plastic &… ◀

39

What this shows E-link holds 39 patents at rank #8,190, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near E-link

By rank, the assignees closest to #8,190 in granted patent volume.

Leaders in A61J (Containers Specially Adapted FOR Medical OR Pharmaceutica…)

Other assignees with the most granted patents in E-link's primary technology class.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for E-link, neither rank-band nor same-CPC leaders (those blocks stay above). In A61J (Containers Specially Adapted FOR Medical OR Pharmaceutica…), E-link ranks #92 of 903 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (29 here).

Garant GP 29 Xianyang Caihong Optoelectronics Technology Co., Ltd 29 Rinat Neuroscience Corp. 29 Arteriors Home 29

E-link's Innovation Score vs. every tracked assignee

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

29 31st percentile higher than 31% 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 · 2019–2025

Grants by year

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

View data table

E-link Plastic & Metal Industrial Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	4	10.3%
2020	8	20.5%
2021	7	17.9%
2022	5	12.8%
2023	7	17.9%
2024	3	7.7%
2025partial year	5	12.8%

Which technologies does E-link Plastic & Metal Industrial Co., Ltd. patent most?

A61J - Containers Specially Adapted FOR Medical OR Pharmaceutical PURPOSES; Devices OR Methods Specially Adapted FOR Bringing Pharmaceutical Products Into Particular Physical OR Administering FORMS; Devices FOR Administering Food OR Medicines ORALLY; Baby COMFORTERS; Devices FOR Receiving Spittle 10

Y10T - Technical Subjects Covered BY Former US Classification 1

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 1

A47J - Kitchen EQUIPMENT; Coffee MILLS; Spice MILLS; Apparatus FOR Making Beverages 1

B02C - Crushing, Pulverising, OR Disintegrating IN GENERAL; Milling Grain 1

B26D - CUTTING; Details Common TO Machines FOR Perforating, Punching, Cutting-out, Stamping-out OR Severing 1

Top 6 of 6 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

E-link Plastic & Metal Industrial Co., Ltd.'s patent record in context - here's where to go next.

E-link Plastic & Metal Industrial Co., Ltd.'s lead technology class is A61J (Containers Specially Adapted FOR Medical OR Pharmaceutical PURPOSES; Devices OR Methods Specially Adapted FOR Bringing Pharmaceutical Products Into Particular Physical OR Administering FORMS; Devices ), 25.6% of its portfolio - see every assignee active in that class. Explore A61J
Ranked #8,191 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare E-link Plastic & Metal Industrial Co., Ltd. against Dongjin Semichem Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 29.5/100 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.