PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Ningbo Richen Electrical Appliance Co., Ltd

USPTO PatentsView assignee record - 13 granted patents across 11 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: F24C (Domestic Stoves OR Ranges ; Details OF Domestic Stoves OR Ranges, OF General Application).

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The verdict

According to USPTO PatentsView, Ningbo ranks #21,521 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 11 technology areas.

#21,521
of 49,997 US assignees by volume
40th percentile
by Innovation Score (32.2/100)
9.7
avg claims per patent
+400%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R21521 · Foreign Corporation #21,521 · 13 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

  • GRANTS-MICRO 13 grants
  • MID-PACK #21,521/49,997
  • PHOTO-FINISH Nikles TEC Italia S…
  • CPC-FOCUS F24C · 11 areas
  • INNOV-THIN 32.2/100
  • CLAIMS-PAR 9.7 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • VEL-SURGE +400% vel
  • BOOK-FULL 10/10 fields

Nearest grant-volume peer: Nikles TEC Italia S.R.L. (±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 32.2 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Innovation-score neighbourhood around Ningbo

Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.

score

What this shows Ningbo's Innovation Score is 32.2/100 (40th 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.

Source USPTO PatentsView, PlainPatent Innovation Score As of 2015–2025

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 9.7 claims/patent is ABOVE the 4.7 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. 2×2 strategic matrix plotting 9 entities by Granted patents (volume) (X) and Avg claims / patent (Y), with a crosshair dividing the plot into four quadrants. Volume + depthSelective & thoroughVolume over depthLean filer 12.912.91313.1 024681012 Granted patents (volume) Avg claims / patent Nikles TEC Italia S.R.L. - 13, 4.69Nikles TEC Italia…Ningbo Aquart Electrical Appliance Co., Ltd - 13, 3.38Ningbo Aquart Ele…Ningbo Ergovida Health Technology Ltd. - 13, 1.38Ningbo Ergovida H…Ningbo Liyang NEW Material Company Limited - 13, 2.54Ningbo Liyang NEW…Ningbo Taller Electrical Appliance Co., Ltd. - 13, 4.69Ningbo Taller Ele…Nippon Paint Surf Chemicals Co., Ltd - 13, 6.62Nippon Paint Surf…Nippon Telegraph AND Telephone East Corporation - 13, 7.54Nippon Telegraph…Nitto Shinko Corporation - 13, 6.54Nitto ShinkoNingbo Richen Electrical Appliance Co., Ltd - 13, 9.69Ningbo Richen Ele…
Ningbo vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Ningbo's grants concentrate

Ningbo Richen Electrical Appliance Co., Ltd is a focused PatentsView assignee: 11 CPC subclasses with 61.5% of grants classified under F24C (Domestic Stoves OR Ranges ; Details OF Domestic Stoves OR Ranges, OF General Application). Peak complete grant year is 2021 (3 grants) versus a trough of 1 in 2016. By volume, Ningbo sits between Nikles TEC Italia S.R.L. and Nitto Shinko Corporation.

Ningbo's three-year grant acceleration

Ningbo Richen Electrical Appliance Co., Ltd shows 5 grants in 2022–2024 against only 6 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Who files at Ningbo's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows Ningbo holds 13 patents at rank #21,501, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Source USPTO PatentsView, granted utility patents As of 2015–2025

Companies ranked near Ningbo

By rank, the assignees closest to #21,501 in granted patent volume.

Leaders in F24C (Domestic Stoves OR Ranges)

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)

32 40th percentile higher than 40% of 49,997 US assignees

This assignee 0 100 every tracked assignee, bucketed by value

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

0.511.522.533.5 20162019202020212022202320242025 1
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
Ningbo Richen Electrical Appliance Co., Ltd patent grants by year, 2015–2025
Year Patents Granted Share of Period
2016 1 7.7%
2019 1 7.7%
2020 2 15.4%
2021 3 23.1%
2022 1 7.7%
2023 2 15.4%
2024 2 15.4%
2025partial year 1 7.7%

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

Top 11 of 11 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 Richen Electrical Appliance Co., Ltd's patent record in context - here's where to go next.

  • Ningbo Richen Electrical Appliance Co., Ltd's lead technology class is F24C (Domestic Stoves OR Ranges ; Details OF Domestic Stoves OR Ranges, OF General Application), 61.5% of its portfolio - see every assignee active in that class. Explore F24C
  • Ranked #21,521 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Ningbo Richen Electrical Appliance Co., Ltd against Nikles TEC Italia S.R.L., an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 32.2/100 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

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.