Where does Zojirushi Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zojirushi Corporation ranks #8,150 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 Zojirushi Corporation hold?

Zojirushi Corporation holds 40 US utility patents granted between 2015 and 2025, spanning 7 technology areas.

What is Zojirushi Corporation's Innovation Score?

Zojirushi Corporation has an Innovation Score of 32.5 out of 100 (41st percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Zojirushi Corporation focus on?

Zojirushi Corporation's top technology area is A47J (Kitchen EQUIPMENT; Coffee MILLS; Spice MILLS; Apparatus FOR Making Beverages) with 3 patents, ranking #307 of 793 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Is Zojirushi Corporation's patent grant rate increasing or decreasing?

Zojirushi Corporation's recent grant velocity is -14% 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 Zojirushi Corporation's patents?

Zojirushi Corporation's patents average 1.6 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 Zojirushi Corporation 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

Zojirushi Corporation

USPTO PatentsView assignee record - 40 granted patents across 7 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: A47J (Kitchen EQUIPMENT; Coffee MILLS; Spice MILLS; Apparatus FOR Making Beverages).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Zojirushi ranks #8,150 of 49,997 tracked US assignees by granted-patent volume, with 40 patents across 7 technology areas.

#8,150
of 49,997 US assignees by volume: 41st percentile
by Innovation Score (32.5/100): 1.6
avg claims per patent: -14%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8150 · Foreign Corporation #8,150 · 40 grants

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

GRANTS-SMALL 40 grants
UPPER-Q #8,150/49,997
PHOTO-FINISH iOttie
CPC-NARROW A47J · 7 areas
INNOV-THIN 32.5/100
CLAIMS-SPARSE 1.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -14% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: iOttie 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 Zojirushi’s 32.5 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 12.8 pts (40%) Velocity 9.3 pts (29%) Breadth 9.4 pts (29%) Claim depth 0.9 pts (3%)

Qualcomm Incorporated · highest

85
Guangzhou Baomei… · near

32
Nokian Heavy Tyres · near

32
Pacific Handy Cutter · near

32
Towerstar Pets · near

32
Zojirushi · this assignee

32
3D Lighting… · lowest

7

What this shows Zojirushi's Innovation Score is 32.5/100 (41st 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 Zojirushi?

Each dot is one of Zojirushi’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). Zojirushi’s own 1.6 claims/patent is at or below the 9.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Zojirushi's grants concentrate

Zojirushi Corporation is a focused PatentsView assignee: 7 CPC subclasses with 7.5% of grants classified under A47J (Kitchen EQUIPMENT; Coffee MILLS; Spice MILLS; Apparatus FOR Making Beverages). Peak complete grant year is 2019 (6 grants) versus a trough of 1 in 2021. By volume, Zojirushi sits between Veran Medical Technologies, Inc. and iOttie Inc..

Zojirushi's three-year grant acceleration

Zojirushi Corporation shows 14 grants in 2022–2024 against only 10 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.

Veran Medical

40
Volta Charging

40
Walter R Tucker E…

40
X-card Holdings

40
Zepp

40
Zing Semiconductor

40
Zygo

40
iottie

40
Zojirushi ◀

40

What this shows Zojirushi holds 40 patents at rank #8,146, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Zojirushi

By rank, the assignees closest to #8,146 in granted patent volume.

Leaders in A47J (Kitchen Equipment)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Zojirushi, neither rank-band nor same-CPC leaders (those blocks stay above). In A47J (Kitchen Equipment), Zojirushi ranks #307 of 793 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (32 here).

Towerstar Pets, LLC 32 Pacific Handy Cutter, Inc. 32 Guangzhou Baomei Network Technology Co., Ltd. 32 Nokian Heavy Tyres Ltd 32

Zojirushi's Innovation Score vs. every tracked assignee

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

32 41st percentile higher than 41% 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

Zojirushi Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	10.0%
2016	3	7.5%
2017	5	12.5%
2018	3	7.5%
2019	6	15.0%
2020	3	7.5%
2021	1	2.5%
2022	4	10.0%
2023	5	12.5%
2024	5	12.5%
2025partial year	1	2.5%

Which technologies does Zojirushi Corporation patent most?

A47J - Kitchen EQUIPMENT; Coffee MILLS; Spice MILLS; Apparatus FOR Making Beverages 3

A21C - Machines OR Equipment FOR Making OR Processing DOUGHS; Handling Baked Articles Made From Dough 2

B01F - Mixing, e.g. Dissolving, Emulsifying OR Dispersing 1

A21B - Bakers' OVENS; Machines OR Equipment FOR Baking 1

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 1

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 1

A23F - COFFEE; TEA; Their SUBSTITUTES; Manufacture, Preparation, OR Infusion Thereof 1

Top 7 of 7 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

Zojirushi Corporation's patent record in context - here's where to go next.

Zojirushi Corporation's lead technology class is A47J (Kitchen EQUIPMENT; Coffee MILLS; Spice MILLS; Apparatus FOR Making Beverages), 7.5% of its portfolio - see every assignee active in that class. Explore A47J
Ranked #8,150 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zojirushi Corporation against Veran Medical Technologies, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 32.5/100 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.