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

According to USPTO PatentsView (2015–2025 granted utility patents), Ivworks Co., Ltd. ranks #47,879 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 Ivworks Co., Ltd. hold?

Ivworks Co., Ltd. holds 5 US utility patents granted between 2023 and 2025, spanning 6 technology areas.

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

Ivworks Co., Ltd. has an Innovation Score of 43.9 out of 100 (top 27% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Insufficient historical data is available to calculate a velocity trend for Ivworks Co., Ltd..

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

Ivworks Co., Ltd.'s patents average 15.0 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 Ivworks 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

Ivworks Co., Ltd.

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

Ivworks Co., Ltd.'s top technology area is C30B (Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrystalline Material With Defined Structure ; Single Crystals OR Homogeneous Polycrystalline Material WI) with 2 patents. Grants appear in 6 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 6 technology areas, recorded in grant years 2023–2025. 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: C30B (Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrys).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Ivworks ranks #47,879 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 6 technology areas.

#47,879
of 49,997 US assignees by volume: Top 27%
by Innovation Score (43.9/100): 15.0
avg claims per patent

USPTO PatentsView assignee plate

Corpus R47879 · Foreign Corporation #47,879 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 5 grants
BOTTOM-DECILE #47,879/49,997
PHOTO-FINISH Ice Adaptive Tires
CPC-NARROW C30B · 6 areas
INNOV-PAR 43.9/100
CLAIMS-RICH 15.0 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2023–2025 · 3y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Ice Adaptive Tires, 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.

Qualcomm Incorporated · highest

85
Ivworks · this assignee

44
3D Lighting… · lowest

7

What this shows Ivworks's Innovation Score is 43.9/100 (top 27% 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 Ivworks's grants concentrate

Ivworks Co., Ltd. is a focused PatentsView assignee: 6 CPC subclasses with 40% of grants classified under C30B (Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrys). Peak complete grant year is 2024 (3 grants) versus a trough of 1 in 2023. By volume, Ivworks sits between Ivax International B.V. and Ice Adaptive Tires, LLC.

Ivworks's three-year grant acceleration

Ivworks Co., Ltd. shows 4 grants in 2022–2024 against only 0 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.

Ivax Internationa…

5
Iveco Defence Veh…

5
Iveric bio

5
Ivsc IP

5
Iwasaki Industry

5
IWK Verpackungste…

5
IYM

5
Ice Adaptive Tires

5
Ivworks ◀

5

What this shows Ivworks holds 5 patents at rank #47,743, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Ivworks

By rank, the assignees closest to #47,743 in granted patent volume.

Leaders in C30B (Single-crystal Growth)

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

Ivworks's Innovation Score vs. every tracked assignee

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

44 Top 27% higher than 73% 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 · 2023–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2023–2019 baseline. Full figures in the table below.

View data table

Ivworks Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2023	1	20.0%
2024	3	60.0%
2025partial year	1	20.0%

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

C30B - Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrystalline Material With Defined Structure ; Single Crystals OR Homogeneous Polycrystalline Material WI 2

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 2

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 2

H01J - Electric Discharge Tubes OR Discharge Lamps 2

H10D - Inorganic Electric Semiconductor Devices 1

H01L - Semiconductor Devices NOT Covered BY Class H10 1

Top 6 of 6 technology areas

Where it ranks

Overall rank by patents

#47,879

of 49,997 tracked assignees

Innovation Score

43.9 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

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

Ivworks Co., Ltd.'s lead technology class is C30B (Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrys), 40% of its portfolio - see every assignee active in that class. Explore C30B
Ranked #47,879 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Ivworks Co., Ltd. against Ivax International B.V., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 43.9/100 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.