Overall rank by patents
#2,556
Across all tracked assignees
USPTO PatentsView assignee record - 152 granted patents across 65 technology areas, active 2015–2017. 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).
The verdict
Guardian holds 152 US patents across 65 technology areas, rank #2,556 of 50,000 tracked assignees.
Guardian Industries Corp. has been granted 152 US utility patents between 2015 and 2017, placing Guardian Industries Corp. at rank #2,556 across all assignees tracked by PlainPatent. This portfolio spans 65 distinct Cooperative Patent Classification (CPC) subclasses, averaging 14.8 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 US Corporation, Guardian Industries Corp. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Guardian sits between Université Paris Cité (153 patents, rank #2,552) and Mitsui Kinzoku ACT Corporation (152 patents, rank #2,560) - the closest US assignees by grant volume. The composite Innovation Score of 51.3/100 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 0 grants, compared with 152 in the 2015–2019 window, a -100% 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. Guardian Industries Corp.'s 14.8 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 65 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Guardian Industries Corp. against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
UNIVERSITÉ PARIS CITÉ
153 patents
Adeia Semiconductor Bonding Technologies Inc.
152 patents
Bombardier Transportation GmbH
152 patents
FUDAN UNIVERSITY
152 patents
HiDeep Inc.
152 patents
INTRA-CELLULAR THERAPIES, INC.
152 patents
Joyson Safety Systems Acquisition LLC
152 patents
MITSUI KINZOKU ACT CORPORATION
152 patents
Guardian Industries Corp.
152 patents
What this shows Guardian holds 152 patents at rank #2,556, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #2,556 in granted patent volume.
Other assignees with the most granted patents in Guardian's primary technology class.
Guardian's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
51 Top 12% higher than 88% 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
Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 55 | 36.2% |
| 2016 | 63 | 41.4% |
| 2017 | 34 | 22.4% |
Top 15 of 65 technology areas
Overall rank by patents
#2,556
Across all tracked assignees
51.3 out of 100
How to use this portfolio
Guardian's 152 grants land it in the top 12% by Innovation Score, but volume alone doesn't tell you where the strength sits.
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.
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.