Where does Hangzhou Silan Microelectronics Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hangzhou Silan Microelectronics Co., Ltd. ranks #17,731 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Hangzhou Silan Microelectronics Co., Ltd. hold?

Hangzhou Silan Microelectronics Co., Ltd. holds 16 US utility patents granted between 2015 and 2024, spanning 14 technology areas.

What is Hangzhou Silan Microelectronics Co., Ltd.'s Innovation Score?

Hangzhou Silan Microelectronics Co., Ltd. has an Innovation Score of 38.8 out of 100 (top 40% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hangzhou Silan Microelectronics Co., Ltd. focus on?

Hangzhou Silan Microelectronics Co., Ltd.'s top technology area is H10D (Inorganic Electric Semiconductor Devices) with 7 patents, ranking #498 of 1,402 assignees active in that subclass. Grants appear in 14 CPC subclasses total.

Is Hangzhou Silan Microelectronics Co., Ltd.'s patent grant rate increasing or decreasing?

Hangzhou Silan Microelectronics Co., Ltd.'s recent grant velocity is +0% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Hangzhou Silan Microelectronics Co., Ltd.'s patents?

Hangzhou Silan Microelectronics Co., Ltd.'s patents average 22.2 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.

How is the Hangzhou Silan Microelectronics 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 2015–2025 USPTO PatentsView Foreign Corporation

Hangzhou Silan Microelectronics Co., Ltd.

USPTO PatentsView assignee record - 16 granted patents across 14 technology areas, recorded in grant years 2015–2024. 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).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Hangzhou ranks #17,731 of 49,997 tracked US assignees by granted-patent volume, with 16 patents across 14 technology areas.

#17,731
of 49,997 US assignees by volume: Top 40%
by Innovation Score (38.8/100): 22.2
avg claims per patent: +0%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R17731 · Foreign Corporation #17,731 · 16 grants

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

GRANTS-MICRO 16 grants
MID-PACK #17,731/49,997
PHOTO-FINISH Guardtime
CPC-FOCUS H10D · 14 areas
INNOV-THIN 38.8/100
CLAIMS-DENSE 22.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +0% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Guardtime SA (±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 Hangzhou’s 38.8 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 9.8 pts (25%) Velocity 2.5 pts (6%) Breadth 13.2 pts (34%) Claim depth 13.3 pts (34%)

Qualcomm Incorporated · highest

85
Hangzhou Silan… · this assignee

39
3D Lighting… · lowest

7

What this shows Hangzhou's Innovation Score is 38.8/100 (top 40% 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 Hangzhou?

Each dot is one of Hangzhou’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). Hangzhou’s own 22.2 claims/patent is ABOVE the 11.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Hangzhou's grants concentrate

Hangzhou Silan Microelectronics Co., Ltd. is a focused PatentsView assignee: 14 CPC subclasses with 43.8% of grants classified under H10D (Inorganic Electric Semiconductor Devices). Peak complete grant year is 2021 (4 grants) versus a trough of 1 in 2016. By volume, Hangzhou sits between Guardtime SA and HDT Bio Corp..

Hangzhou's three-year grant acceleration

Hangzhou Silan Microelectronics Co., Ltd. shows 3 grants in 2022–2024 against only 8 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.

Guardtime

16
Gunitech

16
Gyroscope Therape…

16
Hale Products

16
Hanwha Q Cells

16
Hass

16
Hcmed Innovations

16
HDT Bio

16
Hangzhou Silan Mi… ◀

16

What this shows Hangzhou holds 16 patents at rank #17,726, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hangzhou

By rank, the assignees closest to #17,726 in granted patent volume.

Leaders in H10D (Inorganic Electric Semiconductor Devices)

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)

39 Top 40% higher than 60% 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 · 2015–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Hangzhou Silan Microelectronics Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	12.5%
2016	1	6.3%
2017	1	6.3%
2018	1	6.3%
2019	3	18.8%
2020	1	6.3%
2021	4	25.0%
2022	2	12.5%
2024	1	6.3%

Which technologies does Hangzhou Silan Microelectronics Co., Ltd. patent most?

H10D - Inorganic Electric Semiconductor Devices 7

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 5

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 4

H01L - Semiconductor Devices NOT Covered BY Class H10 4

B81B - Microstructural Devices OR Systems, e.g. Micromechanical Devices 3

B81C - Processes OR Apparatus Specially Adapted FOR THE Manufacture OR Treatment OF Microstructural Devices OR Systems 3

H03K - Pulse Technique 2

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 2

H03H - Impedance Networks, e.g. Resonant CIRCUITS; Resonators 1

H10N - Electric Solid-state Devices NOT Otherwise Provided FOR 1

G06F - Electric Digital Data Processing 1

H04B - Transmission 1

H04R - Loudspeakers, Microphones, Gramophone Pick-ups OR Like Acoustic Electromechanical TRANSDUCERS; Deaf-aid SETS; Public Address Systems 1

H03F - Amplifiers 1

Top 14 of 14 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

Hangzhou Silan Microelectronics Co., Ltd.'s patent record in context - here's where to go next.

Hangzhou Silan Microelectronics Co., Ltd.'s lead technology class is H10D (Inorganic Electric Semiconductor Devices), 43.8% of its portfolio - see every assignee active in that class. Explore H10D
Ranked #17,731 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hangzhou Silan Microelectronics Co., Ltd. against Guardtime SA, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 38.8/100 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.