Overall rank by patents
#47,120
Across all tracked assignees
USPTO PatentsView assignee record - 5 granted patents across 9 technology areas, active 2019–2022. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G06T (IMAGE DATA PROCESSING OR GENERATION, IN GENERAL).
The verdict
Guardian holds 5 US patents across 9 technology areas, rank #47,120 of 50,000 tracked assignees.
Guardian Optical Technologies, Ltd. has been granted 5 US utility patents between 2019 and 2022, placing Guardian Optical Technologies, Ltd. at rank #47,120 across all assignees tracked by PlainPatent. This portfolio spans 9 distinct Cooperative Patent Classification (CPC) subclasses, averaging 18.6 claims per patent with primary concentration in G06T (IMAGE DATA PROCESSING OR GENERATION, IN GENERAL). As a Foreign Corporation, Guardian Optical Technologies, Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Guardian sits between Guangzhou Medical University (5 patents, rank #47,116) and Gutschsemi Limited (5 patents, rank #47,124) - the closest US assignees by grant volume. The composite Innovation Score of 32.4/100 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 3 grants, compared with 2 in the 2015–2019 window, a +50% 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. Guardian Optical Technologies, Ltd.'s 18.6 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 9 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Guardian Optical Technologies, Ltd. against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
GUANGZHOU MEDICAL UNIVERSITY
5 patents
GUANGZHOU QINGKUAI INNOVATION TECHNOLOGY CO., LTD.
5 patents
GUANGZHOU TUSUNNY HOME PRODUCTS CO., LTD.
5 patents
GUANGZHOU WOYA LAIDELING TECHNOLOGY CO., LTD.
5 patents
GUARDNEC CO., LTD.
5 patents
GUILIN WOODPECKER MEDICAL INSTRUMENT CO., LTD.
5 patents
GUIZHOU GZGPS CO., LTD.
5 patents
GUTSCHSEMI LIMITED
5 patents
GUARDIAN OPTICAL TECHNOLOGIES, LTD.
5 patents
What this shows Guardian holds 5 patents at rank #47,120, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #47,120 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)
32 Top 59% higher than 41% 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 2019–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2019 | 2 | 40.0% |
| 2021 | 1 | 20.0% |
| 2022 | 2 | 40.0% |
Top 9 of 9 technology areas
Overall rank by patents
#47,120
Across all tracked assignees
32.4 out of 100
How to use this portfolio
Guardian's 5 grants land it in the top 59% 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.