Where does Siliconware Precision Industries Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Siliconware Precision Industries Co., Ltd. ranks #1,120 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 Siliconware Precision Industries Co., Ltd. hold?

Siliconware Precision Industries Co., Ltd. holds 379 US utility patents granted between 2015 and 2025, spanning 29 technology areas.

What is Siliconware Precision Industries Co., Ltd.'s Innovation Score?

Siliconware Precision Industries Co., Ltd. has an Innovation Score of 54.1 out of 100 (top 8% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Siliconware Precision Industries Co., Ltd. focus on?

Siliconware Precision Industries Co., Ltd.'s top technology area is H01L (Semiconductor Devices NOT Covered BY Class H10) with 353 patents. Grants appear in 29 CPC subclasses total.

Is Siliconware Precision Industries Co., Ltd.'s patent grant rate increasing or decreasing?

Siliconware Precision Industries Co., Ltd.'s recent grant velocity is -33% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Siliconware Precision Industries Co., Ltd.'s patents?

Siliconware Precision Industries Co., Ltd.'s patents average 13.3 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 Siliconware Precision Industries 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

Siliconware Precision Industries Co., Ltd.

USPTO PatentsView assignee record - 379 granted patents across 29 technology areas, recorded in grant years 2015–2025. 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: H01L (Semiconductor Devices NOT Covered BY Class H10).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Siliconware ranks #1,120 of 49,997 tracked US assignees by granted-patent volume, with 379 patents across 29 technology areas.

#1,120
of 49,997 US assignees by volume: Top 8%
by Innovation Score (54.1/100): 13.3
avg claims per patent: -33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1120 · Foreign Corporation #1,120 · 379 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MID 379 grants
TOP-DECILE #1,120/49,997
PHOTO-FINISH Emerson Climate
CPC-FOCUS H01L · 29 areas
INNOV-PAR 54.1/100
CLAIMS-RICH 13.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -33% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Emerson Climate Technologies, Inc. (±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.

Qualcomm Incorporated · highest

85
Isis Innovation · near

54
Nutricia · near

54
Siliconware… · this assignee

54
The Travelers… · near

54
University of Maine… · near

54
3D Lighting… · lowest

7

What this shows Siliconware's Innovation Score is 54.1/100 (top 8% 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.

Where Siliconware's grants concentrate

Siliconware Precision Industries Co., Ltd. is a focused PatentsView assignee: 29 CPC subclasses with 93.1% of grants classified under H01L (Semiconductor Devices NOT Covered BY Class H10). Peak complete grant year is 2016 (51 grants) versus a trough of 21 in 2023. By volume, Siliconware sits between The United States of America as represented by the Administrator of the National Aeronautics and Space Administration and Drexel University.

Siliconware's three-year grant acceleration

From 2019–2021 to 2022–2024, Siliconware Precision Industries Co., Ltd. moved from 88 to 87 grants (0.99x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,214. See the growth leaderboard.

The United States…

380
US Synthetic

380
Emerson Climate

379
Nuctech

379
Siliconware Preci… ◀

379
Sensormatic

378
Airbus (S )

377
Chiun Mai Communi…

377
Drexel University

377

What this shows Siliconware holds 379 patents at rank #1,120, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Siliconware

By rank, the assignees closest to #1,120 in granted patent volume.

Leaders in H01L (Semiconductor Devices NOT Covered BY Class H10)

Other assignees with the most granted patents in Siliconware's primary technology class.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Siliconware, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (54 here).

N.V. Nutricia 54 The Travelers Indemnity Company 54 Isis Innovation Limited 54 University of Maine System Board of Trustees 54

Similar claim depth

Nearest assignees by average claims per patent (13.3 here).

MANN+HUMMEL GmbH 13.3 avg B/E Aerospace, Inc. 13.3 avg Nuovo Pignone Tecnologie S.R.L. 13.3 avg Achates Power, Inc. 13.3 avg

Siliconware's Innovation Score vs. every tracked assignee

Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)

54 Top 8% higher than 92% 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 · 2015–2025

Grants by year

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

View data table

Siliconware Precision Industries Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	37	9.8%
2016	51	13.5%
2017	43	11.3%
2018	44	11.6%
2019	35	9.2%
2020	27	7.1%
2021	26	6.9%
2022	31	8.2%
2023	21	5.5%
2024	35	9.2%
2025partial year	29	7.7%

Which technologies does Siliconware Precision Industries Co., Ltd. patent most?

H01L - Semiconductor Devices NOT Covered BY Class H10 353

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 41

H01Q - Antennas, i.e. Radio Aerials 40

H10D - Inorganic Electric Semiconductor Devices 19

Y10T - Technical Subjects Covered BY Former US Classification 13

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 9

H04B - Transmission 6

G06V - Image OR Video Recognition OR Understanding 4

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 4

B81B - Microstructural Devices OR Systems, e.g. Micromechanical Devices 4

H03H - Impedance Networks, e.g. Resonant CIRCUITS; Resonators 4

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 3

C23F - Non-mechanical Removal OF Metallic Material From Surface ; Inhibiting Corrosion OF Metallic Material OR Incrustation IN GENERAL; Multi-step Processes FOR Surface Treatment OF Metallic Material Involving AT Least ONE Process Provided FOR IN Class C23 AND AT Least ONE Process Covered BY Subclass C21d 3

H01S - Devices Using THE Process OF Light Amplification BY Stimulated Emission OF Radiation [LASER] TO Amplify OR Generate LIGHT; Devices Using Stimulated Emission OF Electromagnetic Radiation IN Wave Ranges Other Than Optical 3

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 2

Top 15 of 29 technology areas

Where it ranks

Overall rank by patents

#1,120

of 49,997 tracked assignees

Innovation Score

54.1 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Siliconware Precision Industries Co., Ltd.'s patent record in context - here's where to go next.

Siliconware Precision Industries Co., Ltd.'s lead technology class is H01L (Semiconductor Devices NOT Covered BY Class H10), 93.1% of its portfolio - see every assignee active in that class. Explore H01L
Ranked #1,120 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Siliconware Precision Industries Co., Ltd. against The United States of America as represented by the Administrator of the National Aeronautics and Space Administration, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 54.1/100 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.