Overall rank by patents
#20,113
Across all tracked assignees
USPTO PatentsView assignee record - 14 granted patents across 7 technology areas, active 2015–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G21F (PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR).
The verdict
NAC holds 14 US patents across 7 technology areas, rank #20,113 of 50,000 tracked assignees.
NAC International Inc. has been granted 14 US utility patents between 2015 and 2024, placing NAC International Inc. at rank #20,113 across all assignees tracked by PlainPatent. This portfolio spans 7 distinct Cooperative Patent Classification (CPC) subclasses, averaging 16.4 claims per patent with primary concentration in G21F (PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR). As a US Corporation, NAC International Inc. is one of the more focused assignees in the PatentsView dataset. By volume, NAC sits between Morega Systems Inc. (14 patents, rank #20,109) and Nanogrid Limited (14 patents, rank #20,117) - the closest US assignees by grant volume. The composite Innovation Score of 48.6/100 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 8 grants, compared with 6 in the 2015–2019 window, a +33% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. 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. NAC International Inc.'s 16.4 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 7 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark NAC International Inc. against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
Morega Systems Inc.
14 patents
Morphic Therapeutic, Inc.
14 patents
Multi-Color Corporation
14 patents
Multiquip Inc.
14 patents
NAKAMURA-TOME PRECISION INDUSTRY CO., LTD.
14 patents
NANJING DRUM TOWER HOSPITAL
14 patents
NANOBACTERIE
14 patents
NANOGRID LIMITED
14 patents
NAC International Inc.
14 patents
What this shows NAC holds 14 patents at rank #20,113, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #20,113 in granted patent volume.
Other assignees with the most granted patents in NAC's primary technology class.
NAC's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
49 Top 16% higher than 84% 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 | 1 | 7.1% |
| 2017 | 2 | 14.3% |
| 2018 | 2 | 14.3% |
| 2019 | 1 | 7.1% |
| 2020 | 1 | 7.1% |
| 2022 | 3 | 21.4% |
| 2023 | 3 | 21.4% |
| 2024 | 1 | 7.1% |
Top 7 of 7 technology areas
Overall rank by patents
#20,113
Across all tracked assignees
48.6 out of 100
How to use this portfolio
NAC's 14 grants land it in the top 16% 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.