Where does Walnut Technology Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Walnut Technology Limited ranks #38,270 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 Walnut Technology Limited hold?

Walnut Technology Limited holds 7 US utility patents granted between 2017 and 2021, spanning 3 technology areas.

What is Walnut Technology Limited's Innovation Score?

Walnut Technology Limited has an Innovation Score of 17.4 out of 100 (4th 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 Walnut Technology Limited focus on?

Walnut Technology Limited's top technology area is Y02T (Climate Change Mitigation Technologies Related TO Transportation) with 2 patents, ranking #1,548 of 2,877 assignees active in that subclass. Grants appear in 3 CPC subclasses total.

Is Walnut Technology Limited's patent grant rate increasing or decreasing?

Walnut Technology Limited's recent grant velocity is -60% 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 Walnut Technology Limited's patents?

Walnut Technology Limited's patents average 6.9 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 Walnut Technology Limited 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

Walnut Technology Limited

USPTO PatentsView assignee record - 7 granted patents across 3 technology areas, recorded in grant years 2017–2021. 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: Y02T (Climate Change Mitigation Technologies Related TO Transportation).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Walnut ranks #38,270 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 3 technology areas.

#38,270
of 49,997 US assignees by volume: 4th percentile
by Innovation Score (17.4/100): 6.9
avg claims per patent: -60%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R38270 · Foreign Corporation #38,270 · 7 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-LOW · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 7 grants
LOWER-Q #38,270/49,997
PHOTO-FINISH Wainamics
CPC-NARROW Y02T · 3 areas
INNOV-LOW 17.4/100
CLAIMS-SPARSE 6.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -60% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Wainamics, 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 Walnut’s 17.4 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 7.2 pts (41%) Velocity 0.0 pts (0%) Breadth 6.1 pts (35%) Claim depth 4.1 pts (24%)

Qualcomm Incorporated · highest

85
Walnut Technology · this assignee

17
3D Lighting… · lowest

7

What this shows Walnut's Innovation Score is 17.4/100 (4th 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 Walnut?

Each dot is one of Walnut’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). Walnut’s own 6.9 claims/patent is at or below the 10.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Walnut's grants concentrate

Walnut Technology Limited is a focused PatentsView assignee: 3 CPC subclasses with 28.6% of grants classified under Y02T (Climate Change Mitigation Technologies Related TO Transportation). Peak complete grant year is 2018 (3 grants) versus a trough of 1 in 2017. By volume, Walnut sits between Wuhan Zjzk Technology Co., Ltd. and Warren Engine Company, Inc.

Wuhan Zjzk Techno…

7
Wuxi Biologics (S…

7
Wuxi Vision Peak…

7
Wainamics

7
Walsun Lighting (…

7
Warner Manufactur…

7
Warner Wireless I…

7
Warren Engine

7
Walnut Technology ◀

7

What this shows Walnut holds 7 patents at rank #38,287, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Walnut

By rank, the assignees closest to #38,287 in granted patent volume.

Leaders in Y02T (Climate Change Mitigation Technologies Related TO Transpo…)

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

Walnut's Innovation Score vs. every tracked assignee

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

17 4th percentile higher than 4% 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 · 2017–2021

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Walnut Technology Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	14.3%
2018	3	42.9%
2019	1	14.3%
2020	1	14.3%
2021	1	14.3%

Which technologies does Walnut Technology Limited patent most?

Y02T - Climate Change Mitigation Technologies Related TO Transportation 2

A63C - SKATES; SKIS; Roller SKATES; Design OR Layout OF Courts, Rinks OR THE Like 2

B60L - Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic Suspension OR Levitation FOR VEHICLES; Monitoring Operating Variables OF Electrically-propelled Vehicl 2

Top 3 of 3 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

Walnut Technology Limited's patent record in context - here's where to go next.

Walnut Technology Limited's lead technology class is Y02T (Climate Change Mitigation Technologies Related TO Transportation), 28.6% of its portfolio - see every assignee active in that class. Explore Y02T
Ranked #38,270 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Walnut Technology Limited against Wuhan Zjzk Technology Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 17.4/100 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.