USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Yazaki Energy System Corporation

USPTO PatentsView assignee record - 26 granted patents across 31 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: Y02B (CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS).

Compiled by PlainPatent, US Patent Intelligence Editorial Process · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

6.4

Avg claims per patent

+425%

5-year grant velocity

The verdict

According to USPTO PatentsView, Yazaki ranks #11,882 of 50,000 tracked US assignees by granted-patent volume, with 26 patents across 31 technology areas.

#11,882
of 50,000 US assignees by volume: Top 7%
by Innovation Score (54.9/100): 6.4
avg claims per patent: +425%
grant velocity, last 5 yrs

Portfolio overview

Yazaki Energy System Corporation has been granted 26 US utility patents between 2016 and 2025, placing Yazaki Energy System Corporation at #11,882 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 31 distinct Cooperative Patent Classification (CPC) subclasses, averaging 6.4 claims per patent with primary concentration in Y02B (CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS). As a Foreign Corporation, Yazaki Energy System Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Yazaki sits between Xwpharma Ltd. (26 patents, rank #11,878) and ZEST IP Holdings, Llc (26 patents, rank #11,886) - the closest US assignees by grant volume. The composite Innovation Score of 54.9/100 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 21 grants, compared with 4 in the 2015–2019 window, a +425% 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. Yazaki Energy System Corporation's 6.4 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 31 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

Xwpharma

26
XYLO

26
Xuzhou Heavy Mach…

26
Yaskawa America

26
Yoti Holding

26
Yotrio Group

26
Zerotech (Shenzhe…

26
ZEST IP Holdings

26
Yazaki Energy Sys… ◀

26

What this shows Yazaki holds 26 patents at rank #11,882, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Yazaki

By rank, the assignees closest to #11,882 in granted patent volume.

Leaders in Y02B (Climate Change Mitigation Technologies Related TO Buildings)

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

Yazaki's Innovation Score vs. every tracked assignee

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

55 Top 7% higher than 93% 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

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

Yazaki Energy System Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	7.7%
2017	1	3.8%
2018	1	3.8%
2020	1	3.8%
2021	2	7.7%
2022	6	23.1%
2023	9	34.6%
2024	3	11.5%
2025partial year	1	3.8%

Which technologies does Yazaki Energy System Corporation patent most?

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 12

E06B - FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES 11

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 11

Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE 8

F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 7

F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 7

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 6

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 6

E04B - GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS 5

F24S - SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS 5

F28F - DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 4

B01D - SEPARATION 2

F24D - DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR 2

H02S - GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES 2

F21V - FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 2

Top 15 of 31 technology areas

Grant record at a glance

Portfolio Volume 26 grants

CPC subclasses 31

Avg. claims / grant 6.4

Velocity +425%

Historical grant data only; it does not rate legal strength or current strategy.

Where it ranks

Overall rank by patents

#11,882

of 50,000 tracked assignees

Innovation Score

54.9 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

Where does Yazaki Energy System Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Yazaki Energy System Corporation ranks #11,882 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 Yazaki Energy System Corporation hold?

Yazaki Energy System Corporation holds 26 US utility patents granted between 2016 and 2025, spanning 31 technology areas.

What is Yazaki Energy System Corporation's Innovation Score?

Yazaki Energy System Corporation has an Innovation Score of 54.9 out of 100 (top 7% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Yazaki Energy System Corporation focus on?

Yazaki Energy System Corporation's top technology area is Y02B (CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS) with 12 patents. Grants appear in 31 CPC subclasses total.

Is Yazaki Energy System Corporation's patent grant rate increasing or decreasing?

Yazaki Energy System Corporation's recent grant velocity is +425% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Yazaki Energy System Corporation's patents?

Yazaki Energy System Corporation's patents average 6.4 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 Yazaki Energy System 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

Yazaki's 26 grants land it in the top 7% 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 - Yazaki ranks #11,882 of 50,000. Top 50 holders
Most of this portfolio concentrates in Y02B - see who else leads that technology area. Y02B 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.

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.