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

According to USPTO PatentsView (2015–2025 granted utility patents), Solum Co., Ltd. ranks #4,222 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 Solum Co., Ltd. hold?

Solum Co., Ltd. holds 85 US utility patents granted between 2016 and 2025, spanning 33 technology areas.

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

Solum Co., Ltd. has an Innovation Score of 54.2 out of 100 (top 8% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Solum Co., Ltd.'s recent grant velocity is -33% 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 Solum Co., Ltd.'s patents?

Solum Co., Ltd.'s patents average 11.8 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 Solum 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

Solum Co., Ltd.

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

Solum Co., Ltd.'s top technology area is 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) with 26 patents, ranking #156 of 1,541 assignees active in that subclass. Grants appear in 33 CPC subclasses total.

USPTO PatentsView assignee record - 85 granted patents across 33 technology areas, recorded in grant years 2016–2025. 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: 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;).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Solum ranks #4,222 of 49,997 tracked US assignees by granted-patent volume, with 85 patents across 33 technology areas.

#4,222
of 49,997 US assignees by volume: Top 8%
by Innovation Score (54.2/100): 11.8
avg claims per patent: -33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R4222 · Foreign Corporation #4,222 · 85 grants

GRANTS-SMALL · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-SMALL 85 grants
TOP-DECILE #4,222/49,997
PHOTO-FINISH Rotation Medical
CPC-FOCUS H02M · 33 areas
INNOV-PAR 54.2/100
CLAIMS-PAR 11.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -33% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Rotation Medical, 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 Solum’s 54.2 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 15.4 pts (28%) Velocity 11.4 pts (21%) Breadth 20.3 pts (37%) Claim depth 7.1 pts (13%)

Qualcomm Incorporated · highest

85
Colder Products · near

54
Lanxess Deutschland · near

54
Solum · this assignee

54
Aveva Software · near

54
Honda Research… · near

54
3D Lighting… · lowest

7

What this shows Solum's Innovation Score is 54.2/100 (top 8% 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 Solum?

Each dot is one of Solum’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). Solum’s own 11.8 claims/patent is at or below the 16.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Solum's grants concentrate

Solum Co., Ltd. is a focused PatentsView assignee: 33 CPC subclasses with 30.6% of grants classified under 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;). Peak complete grant year is 2016 (27 grants) versus a trough of 3 in 2018. By volume, Solum sits between Rotation Medical, Inc. and Thomson Reuters Enterprise Centre GmbH.

Solum's three-year grant acceleration

Solum Co., Ltd. shows 24 grants in 2022–2024 against only 14 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.

Rotation Medical

85
Sage Electrochrom…

85
Savant

85
SFC

85
TAE

85
Toshiba Lifestyle…

85
The University of…

85
Thomson Reuters E…

85
Solum ◀

85

What this shows Solum holds 85 patents at rank #4,222, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Solum

By rank, the assignees closest to #4,222 in granted patent volume.

Leaders in H02M (Apparatus FOR Conversion Between AC AND AC)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Solum, neither rank-band nor same-CPC leaders (those blocks stay above). In H02M (Apparatus FOR Conversion Between AC AND AC), Solum ranks #156 of 1,541 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (54 here).

Lanxess Deutschland GmbH 54 Honda Research Institute Europe GmbH 54 Colder Products Company 54 Aveva Software, LLC 54

Similar claim depth

Nearest assignees by average claims per patent (11.8 here).

Piaggio & C. SPA 11.8 avg Daewoo Shipbuilding & Marine Engineering Co., Ltd. 11.8 avg Warrior Sports, Inc. 11.8 avg LNW Gaming, Inc. 11.8 avg

Solum's Innovation Score vs. every tracked assignee

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

54 Top 8% higher than 92% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Solum Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	27	31.8%
2017	12	14.1%
2018	3	3.5%
2019	6	7.1%
2020	5	5.9%
2021	3	3.5%
2022	10	11.8%
2023	7	8.2%
2024	7	8.2%
2025partial year	5	5.9%

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

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 26

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 21

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 18

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 13

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 11

G09F - DISPLAYING; ADVERTISING; SIGNS; Labels OR NAME-PLATES; Seals 8

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 8

G06Q - Information AND Communication Technology [ICT] Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory PURPOSES; Systems OR Methods Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory Purposes, NOT Otherwise Provided FOR 7

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 6

G06F - Electric Digital Data Processing 4

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 4

G06K - Graphical Data Reading ; Presentation OF DATA; Record CARRIERS; Handling Record Carriers 3

G05F - Systems FOR Regulating Electric OR Magnetic Variables 3

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

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 2

Top 15 of 33 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

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

Solum Co., Ltd.'s lead technology class is 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;), 30.6% of its portfolio - see every assignee active in that class. Explore H02M
Ranked #4,222 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Solum Co., Ltd. against Rotation Medical, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 54.2/100 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.