Overall rank by patents
#12,960
of 50,000 tracked assignees
USPTO PatentsView assignee record - 23 granted patents across 42 technology areas, recorded in grant years 2023–2025. 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: H05H (PLASMA TECHNIQUE ; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS).
The verdict
According to USPTO PatentsView, Hangzhou ranks #12,960 of 50,000 tracked US assignees by granted-patent volume, with 23 patents across 42 technology areas.
USPTO PatentsView assignee plate
Corpus R12960 · Foreign Corporation #12,960 · 23 grants
GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH
Nearest grant-volume peer: Global Bioenergies (±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
Hangzhou CITY Univer… · this assignee
59 score
3D Lighting Innovati… · lowest
7 score
What this shows Hangzhou CITY University stamps GRANTS-SMALL, MID-PACK, PHOTO-FINISH, CPC-WIDE, INNOV-PAR, CLAIMS-PAR, TYPE-FRNCORP, SPAN-YRS, BOOK-RICH. Volume places it #12,960 of 50,000; Innovation Score 58.9/100 sits in the top 4% of the PatentsView-derived corpus. Closest grant-volume peer on this plate is Global Bioenergies (±0 grants).
Hangzhou CITY University has been granted 23 US utility patents between 2023 and 2025, placing Hangzhou CITY University at #12,960 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 42 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.3 claims per patent with primary concentration in H05H (PLASMA TECHNIQUE ; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS). As a Foreign Corporation, Hangzhou CITY University is one of the more focused assignees in the PatentsView dataset. By volume, Hangzhou sits between Global Bioenergies (23 patents, rank #12,953) and Hheli, Llc (23 patents, rank #12,961) - the closest US assignees by grant volume. The composite Innovation Score of 58.9/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.
Grant cadence records the difference between two grant-year windows. Historical data spans 2023 through 2025, with 23 total grants over that period. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.
Claim depth and technology breadth describe this aggregate record. Hangzhou CITY University's 8.3 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 42 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
Global Bioenergies
23 patents
Green Hills Software LLC
23 patents
Guangzhou Songxianjun Trading Co., Ltd.
23 patents
HAL LABORATORY, INC.
23 patents
HARVATEK CORPORATION
23 patents
HFA, Inc.
23 patents
HGST Technologies Santa Ana, Inc.
23 patents
HHeLi, LLC
23 patents
HANGZHOU CITY UNIVERSITY
23 patents
What this shows Hangzhou holds 23 patents at rank #12,957, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #12,957 in granted patent volume.
Other assignees with the most granted patents in Hangzhou's primary technology class.
Hangzhou's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
59 Top 4% higher than 96% 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 2023–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2023 | 5 | 21.7% |
| 2024 | 11 | 47.8% |
| 2025partial year | 7 | 30.4% |
Top 15 of 42 technology areas
Overall rank by patents
#12,960
of 50,000 tracked assignees
58.9 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.