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

According to USPTO PatentsView (2015–2025 granted utility patents), Samhwa Capacitor Co., Ltd. ranks #14,908 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 Samhwa Capacitor Co., Ltd. hold?

Samhwa Capacitor Co., Ltd. holds 20 US utility patents granted between 2015 and 2025, spanning 15 technology areas.

What is Samhwa Capacitor Co., Ltd.'s Innovation Score?

Samhwa Capacitor Co., Ltd. has an Innovation Score of 39.4 out of 100 (top 38% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Samhwa Capacitor Co., Ltd.'s recent grant velocity is -64% 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 Samhwa Capacitor Co., Ltd.'s patents?

Samhwa Capacitor Co., Ltd.'s patents average 10.5 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 Samhwa Capacitor 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

Samhwa Capacitor Co., Ltd.

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

Samhwa Capacitor Co., Ltd.'s top technology area is H01G (CAPACITORS; Capacitors, Rectifiers, Detectors, Switching Devices, Light-sensitive OR Temperature-sensitive Devices OF THE Electrolytic Type) with 17 patents, ranking #42 of 580 assignees active in that subclass. Grants appear in 15 CPC subclasses total.

USPTO PatentsView assignee record - 20 granted patents across 15 technology areas, recorded in grant years 2015–2025. 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: H01G (CAPACITORS; Capacitors, Rectifiers, Detectors, Switching Devices, Light-sensitive OR Temperature-sensitive Devices OF THE Electrolytic Type).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Samhwa ranks #14,908 of 49,997 tracked US assignees by granted-patent volume, with 20 patents across 15 technology areas.

#14,908
of 49,997 US assignees by volume: Top 38%
by Innovation Score (39.4/100): 10.5
avg claims per patent: -64%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R14908 · Foreign Corporation #14,908 · 20 grants

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

GRANTS-SMALL 20 grants
MID-PACK #14,908/49,997
PHOTO-FINISH RxSight
CPC-FOCUS H01G · 15 areas
INNOV-THIN 39.4/100
CLAIMS-PAR 10.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -64% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: RxSight, 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 Samhwa’s 39.4 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 10.5 pts (27%) Velocity 8.9 pts (23%) Breadth 13.7 pts (35%) Claim depth 6.3 pts (16%)

Qualcomm Incorporated · highest

85
Samhwa Capacitor · this assignee

39
3D Lighting… · lowest

7

What this shows Samhwa's Innovation Score is 39.4/100 (top 38% 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 Samhwa?

Each dot is one of Samhwa’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). Samhwa’s own 10.5 claims/patent is ABOVE the 9.3 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Samhwa's grants concentrate

Samhwa Capacitor Co., Ltd. is a focused PatentsView assignee: 15 CPC subclasses with 85% of grants classified under H01G (CAPACITORS; Capacitors, Rectifiers, Detectors, Switching Devices, Light-sensitive OR Temperature-sensitive Devices OF THE Electrolytic Type). Peak complete grant year is 2016 (4 grants) versus a trough of 1 in 2021. By volume, Samhwa sits between RxSight, Inc. and Savoye.

Samhwa's three-year grant acceleration

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

Rxsight

20
S Jean Cassegrain

20
S C R (Engineers)

20
S J Electro Syste…

20
San-ei GEN F F I

20
Sankyo Seisakusho

20
Sanvean

20
Savoye

20
Samhwa Capacitor ◀

20

What this shows Samhwa holds 20 patents at rank #14,906, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Samhwa

By rank, the assignees closest to #14,906 in granted patent volume.

Leaders in H01G (Capacitors)

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

Samhwa's Innovation Score vs. every tracked assignee

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

39 Top 38% higher than 62% 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 · 2015–2025

Grants by year

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

View data table

Samhwa Capacitor Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	10.0%
2016	4	20.0%
2017	3	15.0%
2018	3	15.0%
2019	2	10.0%
2021	1	5.0%
2022	1	5.0%
2023	3	15.0%
2025partial year	1	5.0%

Which technologies does Samhwa Capacitor Co., Ltd. patent most?

H01G - CAPACITORS; Capacitors, Rectifiers, Detectors, Switching Devices, Light-sensitive OR Temperature-sensitive Devices OF THE Electrolytic Type 17

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

Y02T - Climate Change Mitigation Technologies Related TO Transportation 3

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 3

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 2

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 2

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 2

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 1

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 1

C01G - Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f 1

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 1

H01B - CABLES; CONDUCTORS; INSULATORS; Selection OF Materials FOR Their Conductive, Insulating OR Dielectric Properties 1

H01C - Resistors 1

Y10T - Technical Subjects Covered BY Former US Classification 1

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

Top 15 of 15 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

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

Samhwa Capacitor Co., Ltd.'s lead technology class is H01G (CAPACITORS; Capacitors, Rectifiers, Detectors, Switching Devices, Light-sensitive OR Temperature-sensitive Devices OF THE Electrolytic Type), 85% of its portfolio - see every assignee active in that class. Explore H01G
Ranked #14,908 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Samhwa Capacitor Co., Ltd. against RxSight, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 39.4/100 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.