Where does Ningbo Hongfu Aluminium & Plastic Electric Appliance Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Ningbo Hongfu Aluminium & Plastic Electric Appliance Co., Ltd. ranks #36,697 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Is Ningbo Hongfu Aluminium & Plastic Electric Appliance Co., Ltd.'s patent grant rate increasing or decreasing?

Ningbo Hongfu Aluminium & Plastic Electric Appliance Co., Ltd.'s recent grant velocity is +150% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Ningbo Hongfu Aluminium & Plastic Electric Appliance Co., Ltd.'s patents?

Ningbo Hongfu Aluminium & Plastic Electric Appliance Co., Ltd.'s patents average 3.4 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Ningbo Hongfu Aluminium & Plastic Electric Appliance Co., Ltd.

Q: How is the Ningbo Hongfu Aluminium & Plastic Electric 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 - 7 granted patents across 5 technology areas, recorded in grant years 2018–2021. 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: B25D (Percussive Tools).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Ningbo ranks #36,697 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 5 technology areas.

#36,697
of 49,997 US assignees by volume: 4th percentile
by Innovation Score (17.1/100): 3.4
avg claims per patent: +150%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R36697 · Foreign Corporation #36,697 · 7 grants

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

GRANTS-MICRO 7 grants
MID-PACK #36,697/49,997
PHOTO-FINISH Nikken Kosakusho Works
CPC-NARROW B25D · 5 areas
INNOV-LOW 17.1/100
CLAIMS-SPARSE 3.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +150% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Nikken Kosakusho Works, Ltd. (±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 Ningbo’s 17.1 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 (42%) Velocity 0.0 pts (0%) Breadth 7.9 pts (46%) Claim depth 2.1 pts (12%)

Qualcomm Incorporated · highest

85
Ningbo Hongfu… · this assignee

17
3D Lighting… · lowest

7

What this shows Ningbo's Innovation Score is 17.1/100 (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 Ningbo?

Each dot is one of Ningbo’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). Ningbo’s own 3.4 claims/patent is ABOVE the 1.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Ningbo's grants concentrate

Ningbo Hongfu Aluminium & Plastic Electric Appliance Co., Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 14.3% of grants classified under B25D (Percussive Tools). Peak complete grant year is 2021 (3 grants) versus a trough of 1 in 2018. By volume, Ningbo sits between Nikken Kosakusho Works, Ltd. and Ningbo Together Trading Co., Ltd..

Nikken Kosakusho…

7
Ningbo Beidou Out…

7
Ningbo Chima Winch

7
Ningbo Freestyle…

7
Ningbo LET IT BE…

7
Ningbo Meiqi Tool

7
Ningbo Re-cook IM…

7
Ningbo Together T…

7
Ningbo Hongfu Alu… ◀

7

What this shows Ningbo holds 7 patents at rank #36,623, 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 #36,623 in granted patent volume.

Leaders in B25D (Percussive Tools)

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)

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 · 2018–2021

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Ningbo Hongfu Aluminium & Plastic Electric Appliance Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	1	14.3%
2019	1	14.3%
2020	2	28.6%
2021	3	42.9%

Which technologies does Ningbo Hongfu Aluminium & Plastic Electric Appliance Co., Ltd. patent most?

B25D - Percussive Tools 1

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 1

A62B - Devices, Apparatus OR Methods FOR Life-saving 1

B25F - Combination OR Multi-purpose Tools NOT Otherwise Provided FOR; Details OR Components OF Portable Power-driven Tools NOT Particularly Related TO THE Operations Performed AND NOT Otherwise Provided FOR 1

F21L - Lighting Devices OR Systems Thereof, Being Portable OR Specially Adapted FOR Transportation 1

Top 5 of 5 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

Ningbo Hongfu Aluminium & Plastic Electric Appliance Co., Ltd.'s patent record in context - here's where to go next.

Ningbo Hongfu Aluminium & Plastic Electric Appliance Co., Ltd.'s lead technology class is B25D (Percussive Tools), 14.3% of its portfolio - see every assignee active in that class. Explore B25D
Ranked #36,697 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Ningbo Hongfu Aluminium & Plastic Electric Appliance Co., Ltd. against Nikken Kosakusho Works, Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 17.1/100 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.