Where does Ningbo Weitao Electrical Appliance Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Ningbo Weitao Electrical Appliance Co., Ltd. ranks #21,523 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 Ningbo Weitao Electrical Appliance Co., Ltd. hold?

Ningbo Weitao Electrical Appliance Co., Ltd. holds 13 US utility patents granted between 2015 and 2023, spanning 8 technology areas.

What is Ningbo Weitao Electrical Appliance Co., Ltd.'s Innovation Score?

Ningbo Weitao Electrical Appliance Co., Ltd. has an Innovation Score of 22.9 out of 100 (top 89% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Ningbo Weitao Electrical Appliance Co., Ltd.'s patent grant rate increasing or decreasing?

Ningbo Weitao Electrical Appliance Co., Ltd.'s recent grant velocity is -82% 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 Ningbo Weitao Electrical Appliance Co., Ltd.'s patents?

Ningbo Weitao Electrical Appliance Co., Ltd.'s patents average 2.7 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Ningbo Weitao Electrical Appliance Co., Ltd.

Q: What technology areas does Ningbo Weitao Electrical Appliance Co., Ltd. focus on?

Ningbo Weitao Electrical Appliance Co., Ltd.'s top technology area is F21V (FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR) with 5 patents. Grants appear in 8 CPC subclasses total.

Q: How is the Ningbo Weitao Electrical Appliance 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 PatentsView assignee record - 13 granted patents across 8 technology areas, recorded in grant years 2015–2023. 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: F21V (FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR).

Compiled by PlainPatent · May 15, 2026

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Ningbo ranks #21,523 of 50,000 tracked US assignees by granted-patent volume, with 13 patents across 8 technology areas.

#21,523
of 50,000 US assignees by volume: Top 89%
by Innovation Score (22.9/100): 2.7
avg claims per patent: -82%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R21523 · Foreign Corporation #21,523 · 13 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 13 grants
MID-PACK #21,523/50,000
PHOTO-FINISH Newron Pharmaceutica…
CPC-NARROW F21V · 8 areas
INNOV-THIN 22.9/100
CLAIMS-SPARSE 2.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -82% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Newron Pharmaceuticals S.p.a. (±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.

Qualcomm Incorporated · highest

85
Ningbo Weitao Electr… · this assignee

23
3D Lighting Innovati… · lowest

7

What this shows Ningbo's Innovation Score is 22.9/100 (top 89% 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.

Where Ningbo's grants concentrate

Ningbo Weitao Electrical Appliance Co., Ltd. is a focused PatentsView assignee: 8 CPC subclasses with 38.5% of grants classified under F21V (FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR). Peak complete grant year is 2017 (4 grants) versus a trough of 1 in 2021. By volume, Ningbo sits between Newron Pharmaceuticals S.p.a. and Novate Medical Limited.

Newron Pharmaceut…

13
Nextier Completio…

13
Ningbo Eudemon Ch…

13
Ningbo Iclipper E…

13
North China Unive…

13
Northeast Agricul…

13
Northquip

13
Novate Medical

13
Ningbo Weitao Ele… ◀

13

What this shows Ningbo holds 13 patents at rank #21,533, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Ningbo

By rank, the assignees closest to #21,533 in granted patent volume.

Leaders in F21V (Functional Features OR Details OF Lighting Devices OR Sys…)

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

Ningbo's Innovation Score vs. every tracked assignee

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

23 Top 89% higher than 11% 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 · 2015–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Ningbo Weitao Electrical Appliance Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	15.4%
2017	4	30.8%
2018	3	23.1%
2019	2	15.4%
2021	1	7.7%
2023	1	7.7%

Which technologies does Ningbo Weitao Electrical Appliance Co., Ltd. patent most?

F21V - FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 5

F21Y - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED 4

F21W - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS 3

F21S - NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS 3

F21K - NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR 2

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 1

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 1

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 1

Top 8 of 8 technology areas

Where it ranks

Overall rank by patents

#21,523

of 50,000 tracked assignees

Innovation Score

22.9 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

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.