Overall rank by patents
#19,850
of 50,000 tracked assignees
USPTO PatentsView assignee record - 14 granted patents across 4 technology areas, recorded in grant years 2022–2025. 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: H10D (INORGANIC ELECTRIC SEMICONDUCTOR DEVICES).
The verdict
According to USPTO PatentsView, Hangzhou ranks #19,850 of 50,000 tracked US assignees by granted-patent volume, with 14 patents across 4 technology areas.
USPTO PatentsView assignee plate
Corpus R19850 · Foreign Corporation #19,850 · 14 grants
GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH
Nearest grant-volume peer: Hangzhou MPS Semiconductor Technology, 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.
Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.
Qualcomm Incorporated · highest
85 score
Displaylink (uk) · near
44 score
Hangzhou Silicon-mag… · this assignee
44 score
Miura · near
44 score
Upwing Energy · near
44 score
Varta Microbattery · near
44 score
3D Lighting Innovati… · lowest
7 score
What this shows Hangzhou Silicon-magic Semiconductor Technology Co., Ltd. stamps GRANTS-MICRO, MID-PACK, PHOTO-FINISH, CPC-NARROW, INNOV-PAR, CLAIMS-RICH, TYPE-FRNCORP, SPAN-YRS, BOOK-RICH. Volume places it #19,850 of 50,000; Innovation Score 44.4/100 sits in the top 26% of the PatentsView-derived corpus. Closest grant-volume peer on this plate is Hangzhou MPS Semiconductor Technology, Ltd. (±0 grants).
Hangzhou Silicon-magic Semiconductor Technology Co., Ltd. has been granted 14 US utility patents between 2022 and 2025, placing Hangzhou Silicon-magic Semiconductor Technology Co., Ltd. at #19,850 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 4 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.3 claims per patent with primary concentration in H10D (INORGANIC ELECTRIC SEMICONDUCTOR DEVICES). As a Foreign Corporation, Hangzhou Silicon-magic Semiconductor Technology Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Hangzhou sits between Huaneng Clean Energy Research Institute (14 patents, rank #19,854) and Havis, Inc. (14 patents, rank #19,862) - the closest US assignees by grant volume. The composite Innovation Score of 44.4/100 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 2022 through 2025, with 14 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 Silicon-magic Semiconductor Technology Co., Ltd.'s 13.3 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 4 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 ◀
HUANENG CLEAN ENERGY RESEARCH INSTITUTE
14 patents
HYDRA-ELECTRIC COMPANY
14 patents
HZNP Limited
14 patents
Hangzhou MPS Semiconductor Technology, Ltd.
14 patents
Hanking Electronics, Ltd.
14 patents
Hasso-Plattner Institut fuer Softwaresystemtechnik GmbH
14 patents
Hauwei Technologies Co., Ltd.
14 patents
Havis, Inc.
14 patents
Hangzhou Silicon-Magic Semiconductor Technology Co., Ltd.
14 patents
What this shows Hangzhou holds 14 patents at rank #19,858, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #19,858 in granted patent volume.
Other assignees with the most granted patents in Hangzhou's primary technology class.
Two PlainPatent-derived peer sets for Hangzhou, neither rank-band nor same-CPC leaders (those blocks stay above).
Nearest assignees by Innovation Score (44 here).
Hangzhou's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
44 Top 26% higher than 74% 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 2022–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2022 | 3 | 21.4% |
| 2023 | 2 | 14.3% |
| 2024 | 3 | 21.4% |
| 2025partial year | 6 | 42.9% |
Top 4 of 4 technology areas
Overall rank by patents
#19,850
of 50,000 tracked assignees
44.4 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.