USPTO 2015–2025 USPTO PatentsView US Corporation

Alpha And Omega Semiconductor, Ltd.

USPTO PatentsView assignee record - 327 granted patents across 19 technology areas, active 2015–2023. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H10D (INORGANIC ELECTRIC SEMICONDUCTOR DEVICES).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

327

Total patents granted

CPC technology areas

13.3

Avg claims per patent

-92%

5-year filing velocity

The verdict

Alpha holds 327 US patents across 19 technology areas, rank #1,291 of 50,000 tracked assignees.

#1,291
of 50,000 US assignees by volume: Top 27%
by Innovation Score (43.8/100): 13.3
avg claims per patent: -92%
filing velocity, last 5 yrs

Portfolio overview

Alpha And Omega Semiconductor, Ltd. has been granted 327 US utility patents between 2015 and 2023, placing Alpha And Omega Semiconductor, Ltd. at rank #1,291 across all assignees tracked by PlainPatent. This portfolio spans 19 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.3 claims per patent with primary concentration in H10D (INORGANIC ELECTRIC SEMICONDUCTOR DEVICES). As a US Corporation, Alpha And Omega Semiconductor, Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Alpha sits between Quest Diagnostics Investments Llc (329 patents, rank #1,287) and Bayer Pharma Aktiengesellschaft (326 patents, rank #1,295) - the closest US assignees by grant volume. The composite Innovation Score of 43.8/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 24 grants, compared with 303 in the 2015–2019 window, a -92% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The US Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Alpha And Omega Semiconductor, Ltd.'s 13.3 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 19 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Alpha And Omega Semiconductor, Ltd. against peers pursuing similar technology classes.

Quest Diagnostics…

329
Sew-eurodrive & KG

329
Yissum Research D…

329
Safran

328
Brother Industries

327
Medimmune

327
University of Hou…

327
Alpha and Omega S… ◀

327
Bayer Pharma Akti…

326

What this shows Alpha holds 327 patents at rank #1,291, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Alpha

By rank, the assignees closest to #1,291 in granted patent volume.

Leaders in H10D (Inorganic Electric Semiconductor Devices)

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

Alpha's Innovation Score vs. every tracked assignee

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

44 Top 27% higher than 73% 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

USPTO utility patent grants by year · 2015–2023

Grants by year

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

View data table

Alpha And Omega Semiconductor, Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	86	26.3%
2016	81	24.8%
2017	60	18.3%
2018	48	14.7%
2019	28	8.6%
2020	15	4.6%
2021	6	1.8%
2022	2	0.6%
2023	1	0.3%

Which technologies does Alpha And Omega Semiconductor, Ltd. patent most?

H10D - INORGANIC ELECTRIC SEMICONDUCTOR DEVICES 258

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 214

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 20

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 8

H03K - PULSE TECHNIQUE 7

H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 7

H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 5

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 4

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 3

G05F - SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 2

H10B - ELECTRONIC MEMORY DEVICES 2

H01H - ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 2

G06F - ELECTRIC DIGITAL DATA PROCESSING 2

G06K - GRAPHICAL DATA READING ; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 1

H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 1

Top 15 of 19 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Focused

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#1,291

Across all tracked assignees

Innovation Score

43.8 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Alpha And Omega Semiconductor, Ltd. hold?

Alpha And Omega Semiconductor, Ltd. holds 327 US granted patents filed between 2015 and 2023, spanning 19 technology areas.

What is Alpha And Omega Semiconductor, Ltd.'s Innovation Score?

Alpha And Omega Semiconductor, Ltd. has an Innovation Score of 43.8 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Alpha And Omega Semiconductor, Ltd. focus on?

Alpha And Omega Semiconductor, Ltd.'s top technology area is H10D (INORGANIC ELECTRIC SEMICONDUCTOR DEVICES) with 258 patents. The company has filed patents in 19 CPC subclasses total.

Is Alpha And Omega Semiconductor, Ltd.'s patent filing rate increasing or decreasing?

Alpha And Omega Semiconductor, Ltd.'s recent filing velocity is -92% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Alpha And Omega Semiconductor, Ltd.'s patents?

Alpha And Omega Semiconductor, Ltd.'s patents average 13.3 claims each. This falls within the standard range, providing solid legal coverage.

How is the Alpha And Omega Semiconductor, 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.

How to use this portfolio

Alpha's 327 grants land it in the top 27% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Alpha ranks #1,291 of 50,000. Top 50 holders
Most of this portfolio concentrates in H10D - see who else leads that technology area. H10D leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.