Where does Guardian Glass, LLC rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Guardian Glass, LLC ranks #1,641 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 Guardian Glass, LLC hold?

Guardian Glass, LLC holds 251 US utility patents granted between 2017 and 2025, spanning 62 technology areas.

What is Guardian Glass, LLC's Innovation Score?

Guardian Glass, LLC has an Innovation Score of 56.3 out of 100 (top 6% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Guardian Glass, LLC's patent grant rate increasing or decreasing?

Guardian Glass, LLC's recent grant velocity is -28% 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 Guardian Glass, LLC's patents?

Guardian Glass, LLC's patents average 18.0 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 Guardian Glass, LLC 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 US Corporation

Guardian Glass, LLC

Q: What technology areas does Guardian Glass, LLC focus on?

Guardian Glass, LLC'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 173 patents. Grants appear in 62 CPC subclasses total.

USPTO PatentsView assignee record - 251 granted patents across 62 technology areas, recorded in grant years 2017–2025. 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: 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 by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Guardian ranks #1,641 of 49,997 tracked US assignees by granted-patent volume, with 251 patents across 62 technology areas.

#1,641
of 49,997 US assignees by volume: Top 6%
by Innovation Score (56.3/100): 18.0
avg claims per patent: -28%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1641 · US Corporation #1,641 · 251 grants

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

GRANTS-MID 251 grants
TOP-DECILE #1,641/49,997
PHOTO-FINISH Citizen
CPC-WIDE C03C · 62 areas
INNOV-PAR 56.3/100
CLAIMS-RICH 18.0 claims/avg
TYPE-USCORP US Corporation
VEL-DOWN -28% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Citizen Electronics Co., Ltd. (±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
Areva NC · near

56
DK Crown Holdings · near

56
Keyence · near

56
Guardian Glass · this assignee

56
Inventus Holdings · near

56
3D Lighting… · lowest

7

What this shows Guardian's Innovation Score is 56.3/100 (top 6% 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.

How Guardian's grant cadence moved

Between 2020–2024, Guardian Glass, LLC received 104 grants versus 144 in 2015–2019 (-28% equal-window velocity, below median growth). Across complete PatentsView years, output peaked in 2019 at 79 grants and bottomed in 2024 at 7. Lead class C03C accounts for 68.9% of the portfolio across 62 subclasses. Volume neighbours: Wayne State University (#1,637) and American Axle & Manufacturing, Inc. (#1,645).

Guardian's three-year grant acceleration

From 2019–2021 to 2022–2024, Guardian Glass, LLC moved from 151 to 32 grants (0.21x 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 #3,080. See the growth leaderboard.

Wayne State Unive…

252
Citizen

251
Datalogic IP Tech…

251
GD Midea Air-cond…

251
THE Aerospace

251
UCB Biopharma SRL

251
Zscaler

251
Guardian Glass ◀

251
American Axle & M…

250

What this shows Guardian holds 251 patents at rank #1,641, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Guardian

By rank, the assignees closest to #1,641 in granted patent volume.

Leaders in C03C (Chemical Composition OF Glasses)

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

Assignees with similar portfolio profiles

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

Similar innovation score

Nearest assignees by Innovation Score (56 here).

Inventus Holdings, LLC 56 Keyence Corporation 56 DK Crown Holdings Inc. 56 Areva NC 56

Similar claim depth

Nearest assignees by average claims per patent (18.0 here).

Saint-gobain Abrasives, Inc. 18.0 avg Saturn Licensing LLC 18.0 avg Idemitsu Kosan Co., Ltd. 18.0 avg Exxon Mobil Technology and Engineering Company 18.0 avg

Guardian's Innovation Score vs. every tracked assignee

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

56 Top 6% higher than 94% 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 · 2017–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Guardian Glass, LLC patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	21	8.4%
2018	44	17.5%
2019	79	31.5%
2020	52	20.7%
2021	20	8.0%
2022	12	4.8%
2023	13	5.2%
2024	7	2.8%
2025partial year	3	1.2%

Which technologies does Guardian Glass, LLC 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 173

E06B - Fixed OR Movable Closures FOR Openings IN Buildings, Vehicles, Fences OR Like Enclosures IN General, e.g. Doors, Windows, Blinds, Gates 106

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 52

Y10T - Technical Subjects Covered BY Former US Classification 50

G02B - Optical Elements, Systems OR Apparatus 45

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 44

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 44

Y02A - Technologies FOR Adaptation TO Climate Change 34

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 28

G06F - Electric Digital Data Processing 26

C03B - Manufacture, Shaping, OR Supplementary Processes 20

B60J - Windows, Windscreens, Non-fixed Roofs, Doors, OR Similar Devices FOR VEHICLES; Removable External Protective Coverings Specially Adapted FOR Vehicles 13

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 11

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 8

E04D - Roof COVERINGS; SKY-LIGHTS; GUTTERS; Roof-working Tools 7

Top 15 of 62 technology areas

Where it ranks

Overall rank by patents

#1,641

of 49,997 tracked assignees

Innovation Score

56.3 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

Guardian Glass, LLC's patent record in context - here's where to go next.

Guardian Glass, LLC's lead technology class 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 MA), 68.9% of its portfolio - see every assignee active in that class. Explore C03C
Ranked #1,641 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Guardian Glass, LLC against Wayne State University, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 56.3/100 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.