USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Chimei Corporation

USPTO PatentsView assignee record - 101 granted patents across 34 technology areas, active 2015–2023. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G03F (PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR;).

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

Explore the portfolio See the ranking

101

Total patents granted

CPC technology areas

13.4

Avg claims per patent

-83%

5-year filing velocity

The verdict

Chimei holds 101 US patents across 34 technology areas, rank #3,620 of 50,000 tracked assignees.

#3,620
of 50,000 US assignees by volume: Top 18%
by Innovation Score (47.7/100): 13.4
avg claims per patent: -83%
filing velocity, last 5 yrs

Portfolio overview

Chimei Corporation has been granted 101 US utility patents between 2015 and 2023, placing Chimei Corporation at rank #3,620 across all assignees tracked by PlainPatent. This portfolio spans 34 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.4 claims per patent with primary concentration in G03F (PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR;). As a Foreign Corporation, Chimei Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Chimei sits between Amsted Rail Company, Inc. (101 patents, rank #3,616) and Delphi International Operations Luxembourg S.a.r.l. (101 patents, rank #3,624) - the closest US assignees by grant volume. The composite Innovation Score of 47.7/100 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 15 grants, compared with 86 in the 2015–2019 window, a -83% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign 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. Chimei Corporation's 13.4 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 34 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Chimei Corporation against peers pursuing similar technology classes.

Amsted Rail

101
Bentley Motors

101
Ceraloc Innovatio…

101
Chang CHUN Petroc…

101
Consiglio Naziona…

101
CPG

101
Curna

101
Delphi Internatio…

101
Chimei ◀

101

What this shows Chimei holds 101 patents at rank #3,620, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chimei

By rank, the assignees closest to #3,620 in granted patent volume.

Leaders in G03F (Photomechanical Production OF Textured OR Patterned Surfaces)

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

Chimei's Innovation Score vs. every tracked assignee

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

48 Top 18% higher than 82% 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

Chimei Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	31	30.7%
2016	26	25.7%
2017	10	9.9%
2018	15	14.9%
2019	4	4.0%
2020	3	3.0%
2021	6	5.9%
2022	5	5.0%
2023	1	1.0%

Which technologies does Chimei Corporation patent most?

G03F - PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR; 37

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 30

G02F - OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 30

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 25

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 23

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 23

C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 17

C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 16

H10H - INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS 15

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 11

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 8

B60C - VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES 6

C08C - TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS 6

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 5

C08J - WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H 5

Top 15 of 34 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#3,620

Across all tracked assignees

Innovation Score

47.7 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 Chimei Corporation hold?

Chimei Corporation holds 101 US granted patents filed between 2015 and 2023, spanning 34 technology areas.

What is Chimei Corporation's Innovation Score?

Chimei Corporation has an Innovation Score of 47.7 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Chimei Corporation focus on?

Chimei Corporation's top technology area is G03F (PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR;) with 37 patents. The company has filed patents in 34 CPC subclasses total.

Is Chimei Corporation's patent filing rate increasing or decreasing?

Chimei Corporation's recent filing velocity is -83% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Chimei Corporation's patents?

Chimei Corporation's patents average 13.4 claims each. This falls within the standard range, providing solid legal coverage.

How is the Chimei Corporation 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

Chimei's 101 grants land it in the top 18% 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 - Chimei ranks #3,620 of 50,000. Top 50 holders
Most of this portfolio concentrates in G03F - see who else leads that technology area. G03F 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.