USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Nippon Sheet Glass Company, Limited

USPTO PatentsView assignee record - 199 granted patents across 89 technology areas, active 2015–2025. 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

199

Total patents granted

CPC technology areas

12.4

Avg claims per patent

+97%

5-year filing velocity

The verdict

Nippon holds 199 US patents across 89 technology areas, rank #2,010 of 50,000 tracked assignees.

#2,010
of 50,000 US assignees by volume: Top 4%
by Innovation Score (58.7/100): 12.4
avg claims per patent: +97%
filing velocity, last 5 yrs

Portfolio overview

Nippon Sheet Glass Company, Limited has been granted 199 US utility patents between 2015 and 2025, placing Nippon Sheet Glass Company, Limited at rank #2,010 across all assignees tracked by PlainPatent. This portfolio spans 89 distinct Cooperative Patent Classification (CPC) subclasses, averaging 12.4 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, Nippon Sheet Glass Company, Limited is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Nippon sits between Vermeer Manufacturing Company (200 patents, rank #2,006) and Lagree Technologies, Inc. (198 patents, rank #2,014) - the closest US assignees by grant volume. The composite Innovation Score of 58.7/100 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 132 grants, compared with 67 in the 2015–2019 window, a +97% 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. Nippon Sheet Glass Company, Limited's 12.4 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 89 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Nippon Sheet Glass Company, Limited against peers pursuing similar technology classes.

Vermeer Manufactu…

200
Fedex Corporate S…

199
Globeride

199
Kraft Foods Group…

199
Sorenson IP Holdi…

199
Valeo North Ameri…

199
Nippon Sheet Glass ◀

199
Crossbar

198
Lagree

198

What this shows Nippon holds 199 patents at rank #2,010, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Nippon

By rank, the assignees closest to #2,010 in granted patent volume.

Leaders in C03C (Chemical Composition OF Glasses)

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

Nippon's Innovation Score vs. every tracked assignee

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

59 Top 4% higher than 96% 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 · 2015–2025

Grants by year

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

View data table

Nippon Sheet Glass Company, Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	18	9.0%
2016	9	4.5%
2017	13	6.5%
2018	10	5.0%
2019	17	8.5%
2020	17	8.5%
2021	25	12.6%
2022	22	11.1%
2023	23	11.6%
2024	25	12.6%
2025	20	10.1%

Which technologies does Nippon Sheet Glass Company, Limited 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 73

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 52

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 41

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 36

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 35

B60J - WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES 28

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 24

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 17

C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS 16

C09C - TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS 16

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 15

C03B - MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES 14

H10F - INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION 13

C08J - WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H 13

E06B - FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES 13

Top 15 of 89 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Accelerating

Where it ranks

Overall rank by patents

#2,010

Across all tracked assignees

Innovation Score

58.7 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 Nippon Sheet Glass Company, Limited hold?

Nippon Sheet Glass Company, Limited holds 199 US granted patents filed between 2015 and 2025, spanning 89 technology areas.

What is Nippon Sheet Glass Company, Limited's Innovation Score?

Nippon Sheet Glass Company, Limited has an Innovation Score of 58.7 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Nippon Sheet Glass Company, Limited focus on?

Nippon Sheet Glass Company, Limited'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 73 patents. The company has filed patents in 89 CPC subclasses total.

Is Nippon Sheet Glass Company, Limited's patent filing rate increasing or decreasing?

Nippon Sheet Glass Company, Limited's recent filing velocity is +97% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Nippon Sheet Glass Company, Limited's patents?

Nippon Sheet Glass Company, Limited's patents average 12.4 claims each. This falls within the standard range, providing solid legal coverage.

How is the Nippon Sheet Glass Company, Limited 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

Nippon's 199 grants land it in the top 4% 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 - Nippon ranks #2,010 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.