Overall rank by patents
#21,516
of 50,000 tracked assignees
USPTO PatentsView assignee record - 13 granted patents across 5 technology areas, recorded in grant years 2021–2025. 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: F25C (PRODUCING, WORKING OR HANDLING ICE).
The verdict
According to USPTO PatentsView, Ningbo ranks #21,516 of 50,000 tracked US assignees by granted-patent volume, with 13 patents across 5 technology areas.
USPTO PatentsView assignee plate
Corpus R21516 · Foreign Corporation #21,516 · 13 grants
GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH
Nearest grant-volume peer: Nicolaas Josef Schoemaker E Outros (±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.
Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.
Qualcomm Incorporated · highest
85 score
Ningbo Aquart Electr… · this assignee
39 score
3D Lighting Innovati… · lowest
7 score
What this shows Ningbo's Innovation Score is 39.0/100 (top 39% 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.
Ningbo Aquart Electrical Appliance Co., Ltd is a focused PatentsView assignee: 5 CPC subclasses with 15.4% of grants classified under F25C (PRODUCING, WORKING OR HANDLING ICE). Peak complete grant year is 2022 (8 grants) versus a trough of 1 in 2021. By volume, Ningbo sits between Nicolaas Josef Schoemaker E Outros and Ningbo Taller Electrical Appliance Co., Ltd..
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
NICOLAAS JOSEF SCHOEMAKER e OUTROS
13 patents
NIDEC MOBILITY CORPORATION
13 patents
NIIGON MACHINES LTD.
13 patents
NIKLES TEC ITALIA S.R.L.
13 patents
NINGBO ERGOVIDA HEALTH TECHNOLOGY LTD.
13 patents
NINGBO LIYANG NEW MATERIAL COMPANY LIMITED
13 patents
NINGBO RICHEN ELECTRICAL APPLIANCE CO., LTD
13 patents
NINGBO TALLER ELECTRICAL APPLIANCE CO., LTD.
13 patents
NINGBO AQUART ELECTRICAL APPLIANCE CO., LTD
13 patents
What this shows Ningbo holds 13 patents at rank #21,498, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #21,498 in granted patent volume.
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)
39 Top 39% higher than 61% 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
Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2021 | 1 | 7.7% |
| 2022 | 8 | 61.5% |
| 2024 | 3 | 23.1% |
| 2025partial year | 1 | 7.7% |
Top 5 of 5 technology areas
Overall rank by patents
#21,516
of 50,000 tracked assignees
39.0 out of 100
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.