USPTO 2015–2025 USPTO PatentsView Foreign Corporation

AGC Inc.

USPTO PatentsView assignee record - 988 granted patents across 158 technology areas, active 2018–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C03C (CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MA).

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

Explore the portfolio See the ranking

988

Total patents granted

158

CPC technology areas

15.2

Avg claims per patent

+262%

5-year filing velocity

The verdict

AGC holds 988 US patents across 158 technology areas, rank #457 of 50,000 tracked assignees.

#457
of 50,000 US assignees by volume: Top 2%
by Innovation Score (62.8/100): 15.2
avg claims per patent: +262%
filing velocity, last 5 yrs

Portfolio overview

AGC Inc. has been granted 988 US utility patents between 2018 and 2025, placing AGC Inc. at rank #457 across all assignees tracked by PlainPatent. This portfolio spans 158 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.2 claims per patent with primary concentration in C03C (CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MA). As a Foreign Corporation, AGC Inc. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, AGC sits between The Board Of Trustees Of The University Of Illinois (1,004 patents, rank #453) and Foxconn Interconnect Technology Limited (974 patents, rank #461) - the closest US assignees by grant volume. The composite Innovation Score of 62.8/100 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 774 grants, compared with 214 in the 2015–2019 window, a +262% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. AGC Inc.'s 15.2 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark AGC Inc. against peers pursuing similar technology classes.

The Board of Trus…

1,004
Nidec

999
GE Precision Heal…

994
Beijing BOE Techn…

991
L'air Liquide Soc…

988
AGC ◀

988
Snowflake

984
Ebara

983
Foxconn Interconn…

974

What this shows AGC holds 988 patents at rank #457, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near AGC

By rank, the assignees closest to #457 in granted patent volume.

Leaders in C03C (Chemical Composition OF Glasses)

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

AGC's Innovation Score vs. every tracked assignee

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

63 Top 2% higher than 98% 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 · 2018–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

AGC Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	37	3.7%
2019	177	17.9%
2020	163	16.5%
2021	148	15.0%
2022	125	12.7%
2023	112	11.3%
2024	117	11.8%
2025	109	11.0%

Which technologies does AGC Inc. patent most?

C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS 288

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 246

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 173

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 129

C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 126

B60J - WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES 99

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 88

C08J - WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H 87

C03B - MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES 82

H01Q - ANTENNAS, i.e. RADIO AERIALS 78

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 62

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 60

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 57

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 56

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 54

Top 15 of 158 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Diversified

Claim Depth Standard

Velocity Accelerating

Where it ranks

Overall rank by patents

#457

Across all tracked assignees

Innovation Score

62.8 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 AGC Inc. hold?

AGC Inc. holds 988 US granted patents filed between 2018 and 2025, spanning 158 technology areas.

What is AGC Inc.'s Innovation Score?

AGC Inc. has an Innovation Score of 62.8 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does AGC Inc. focus on?

AGC Inc.'s top technology area is C03C (CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS) with 288 patents. The company has filed patents in 158 CPC subclasses total.

Is AGC Inc.'s patent filing rate increasing or decreasing?

AGC Inc.'s recent filing velocity is +262% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for AGC Inc.'s patents?

AGC Inc.'s patents average 15.2 claims each. This falls within the standard range, providing solid legal coverage.

How is the AGC Inc. 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

AGC's 988 grants land it in the top 2% 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 - AGC ranks #457 of 50,000. Top 50 holders
Most of this portfolio concentrates in C03C - see who else leads that technology area. C03C 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.