Where does Alcare Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Alcare Co., Ltd. ranks #34,163 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 Alcare Co., Ltd. hold?

Alcare Co., Ltd. holds 7 US utility patents granted between 2019 and 2024, spanning 6 technology areas.

What is Alcare Co., Ltd.'s Innovation Score?

Alcare Co., Ltd. has an Innovation Score of 26.9 out of 100 (22nd percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Alcare Co., Ltd.'s patent grant rate increasing or decreasing?

Alcare Co., Ltd.'s recent grant velocity is +150% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Alcare Co., Ltd.'s patents?

Alcare Co., Ltd.'s patents average 10.1 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 Alcare 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

Alcare Co., Ltd.

Q: What technology areas does Alcare Co., Ltd. focus on?

Alcare Co., Ltd.'s top technology area is A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive DEVICES; FOMENTATION; Treatment OR Protection OF Eyes OR EARS; Bandages, Dressings OR Absorbent PADS; Firs) with 5 patents. Grants appear in 6 CPC subclasses total.

USPTO PatentsView assignee record - 7 granted patents across 6 technology areas, recorded in grant years 2019–2024. 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: A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive Device).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Alcare ranks #34,163 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 6 technology areas.

#34,163
of 49,997 US assignees by volume: 22nd percentile
by Innovation Score (26.9/100): 10.1
avg claims per patent: +150%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R34163 · Foreign Corporation #34,163 · 7 grants

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

GRANTS-MICRO 7 grants
MID-PACK #34,163/49,997
PHOTO-FINISH Akitra
CPC-NARROW A61F · 6 areas
INNOV-THIN 26.9/100
CLAIMS-PAR 10.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +150% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Akitra, 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.

Qualcomm Incorporated · highest

85
Alcare · this assignee

27
3D Lighting… · lowest

7

What this shows Alcare's Innovation Score is 26.9/100 (22nd 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.

Where Alcare's grants concentrate

Alcare Co., Ltd. is a focused PatentsView assignee: 6 CPC subclasses with 71.4% of grants classified under A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive Device). Peak complete grant year is 2019 (2 grants) versus a trough of 1 in 2022. By volume, Alcare sits between Akitra, Inc. and Alevo International S.A..

Alcare's three-year grant acceleration

Alcare Co., Ltd. shows 3 grants in 2022–2024 against only 4 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.

Akitra

7
Akron Polymer Sol…

7
Alanod & KG

7
Alcan Systems

7
Alcyone Therapeut…

7
Alelion Energy Sy…

7
Alert Logic

7
Alevo Internation…

7
Alcare ◀

7

What this shows Alcare holds 7 patents at rank #34,110, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Alcare

By rank, the assignees closest to #34,110 in granted patent volume.

Leaders in A61F (Filters Implantable Into Blood Vessels)

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

Alcare's Innovation Score vs. every tracked assignee

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

27 22nd percentile higher than 22% 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 · 2019–2024

Grants by year

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

View data table

Alcare Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	2	28.6%
2020	2	28.6%
2022	1	14.3%
2024	2	28.6%

Which technologies does Alcare Co., Ltd. patent most?

A61F - Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive DEVICES; FOMENTATION; Treatment OR Protection OF Eyes OR EARS; Bandages, Dressings OR Absorbent PADS; Firs 5

A61L - Methods OR Apparatus FOR Sterilising Materials OR Objects IN GENERAL; Disinfection, Sterilisation OR Deodorisation OF AIR; Chemical Aspects OF Bandages, Dressings, Absorbent Pads OR Surgical ARTICLES; Materials FOR Bandages, Dressings, Absorbent Pads OR Surgical Articles 4

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 1

C08L - Compositions OF Macromolecular Compounds 1

A61B - DIAGNOSIS; SURGERY; Identification 1

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 1

Top 6 of 6 technology areas

Where it ranks

Overall rank by patents

#34,163

of 49,997 tracked assignees

Innovation Score

26.9 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Alcare Co., Ltd.'s patent record in context - here's where to go next.

Alcare Co., Ltd.'s lead technology class is A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive Device), 71.4% of its portfolio - see every assignee active in that class. Explore A61F
Ranked #34,163 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Alcare Co., Ltd. against Akitra, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 26.9/100 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.