Overall rank by patents
#8,150
of 50,000 tracked assignees
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).
40
Total patents granted
7
CPC technology areas
1.6
Avg claims per patent
-14%
5-year grant velocity
The verdict
According to USPTO PatentsView, Zojirushi ranks #8,150 of 50,000 tracked US assignees by granted-patent volume, with 40 patents across 7 technology areas.
- #8,150
- of 50,000 US assignees by volume
- Top 59%
- by Innovation Score (32.5/100)
- 1.6
- avg claims per patent
- -14%
- grant velocity, last 5 yrs
Portfolio overview
Zojirushi Corporation has been granted 40 US utility patents between 2015 and 2025, placing Zojirushi Corporation at #8,150 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 7 distinct Cooperative Patent Classification (CPC) subclasses, averaging 1.6 claims per patent with primary concentration in A47J (KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES). As a Foreign Corporation, Zojirushi Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Zojirushi sits between Veran Medical Technologies, Inc. (40 patents, rank #8,142) and Iottie Inc. (40 patents, rank #8,150) - the closest US assignees by grant volume. The composite Innovation Score of 32.5/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.
Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 18 grants, compared with 21 in the 2015–2019 window, a -14% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.
Claim depth and technology breadth describe this aggregate record. Zojirushi Corporation's 1.6 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 7 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.
Who files at Zojirushi's volume?
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
- Veran Medical
Veran Medical Technologies, Inc.
40 patents
- Volta Charging
Volta Charging, LLC
40 patents
- Walter R Tucker E…
Walter R. Tucker Enterprises, Ltd
40 patents
- X-card Holdings
X-Card Holdings, LLC
40 patents
- Zepp
Zepp, Inc.
40 patents
- Zing Semiconductor
Zing Semiconductor Corporation
40 patents
- Zygo
Zygo Corporation
40 patents
- iottie
iOttie Inc.
40 patents
- Zojirushi ◀
ZOJIRUSHI CORPORATION
40 patents
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.
- Veran Medical Technologies, Inc. #8,142 · 40 patents
- Volta Charging, Llc #8,143 · 40 patents
- Walter R. Tucker Enterprises, Ltd #8,144 · 40 patents
- X-card Holdings, Llc #8,145 · 40 patents
- Zepp, Inc. #8,147 · 40 patents
- Zing Semiconductor Corporation #8,148 · 40 patents
- Zygo Corporation #8,149 · 40 patents
- Iottie Inc. #8,150 · 40 patents
Leaders in A47J (Kitchen Equipment)
Other assignees with the most granted patents in Zojirushi's primary technology class.
Zojirushi's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
32 Top 59% higher than 41% of 50,000 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
Grants by year
Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.
View data table
| 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?
Top 7 of 7 technology areas
Grant record at a glance
Portfolio Volume 40 grants
CPC subclasses 7
Avg. claims / grant 1.6
Velocity -14%
Historical grant data only; it does not rate legal strength or current strategy.
Frequently Asked Questions
Where does Zojirushi Corporation rank among US patent assignees?
According to USPTO PatentsView (2015–2025 granted utility patents), Zojirushi Corporation ranks #8,150 of 50,000 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 (top 59% 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. 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.
How to use this portfolio
Zojirushi's 40 grants land it in the top 59% by Innovation Score, but volume alone doesn't tell you where the strength sits.
- Read that count against the largest US assignees before treating it as dominance - Zojirushi ranks #8,150 of 50,000. Top 50 holders
- Most of this portfolio concentrates in A47J - see who else leads that technology area. A47J leaders
- Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works
Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.
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.