Overall rank by patents
#41,510
Across all tracked assignees
USPTO PatentsView assignee record - 6 granted patents across 3 technology areas, active 2015–2016. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B23B (TURNING; BORING).
The verdict
Magna-sonic holds 6 US patents across 3 technology areas, rank #41,510 of 50,000 tracked assignees.
Magna-sonic Stress Testers Inc. has been granted 6 US utility patents between 2015 and 2016, placing Magna-sonic Stress Testers Inc. at rank #41,510 across all assignees tracked by PlainPatent. This portfolio spans 3 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.2 claims per patent with primary concentration in B23B (TURNING; BORING). As a US Corporation, Magna-sonic Stress Testers Inc. is one of the more focused assignees in the PatentsView dataset. By volume, Magna-sonic sits between MAG Daddy Llc (6 patents, rank #41,506) and Makersan Makina Otomotiv Sanayi Ticaret Anonim Sirketi (6 patents, rank #41,514) - the closest US assignees by grant volume. The composite Innovation Score of 18.4/100 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 0 grants, compared with 6 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. Magna-sonic Stress Testers Inc.'s 9.2 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while specialization in 3 subclasses reflects a tightly scoped invention area. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Magna-sonic Stress Testers Inc. against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
MAG DADDY LLC
6 patents
MAGEN ECO ENERGY A.C.S LTD.
6 patents
MAGNA Auteca GmbH
6 patents
MAGNA BDW TECHNOLOGIES GMBH
6 patents
MAGNADYNE CORPORATION
6 patents
MAHLE AUTOMOTIVE TECHNOLOGIES (CHINA) CO., LTD.
6 patents
MAHLE COMPOSANTS MOTEUR FRANCE SAS
6 patents
MAKERSAN MAKINA OTOMOTIV SANAYI TICARET ANONIM SIRKETI
6 patents
MAGNA-SONIC STRESS TESTERS INC.
6 patents
What this shows Magna-sonic holds 6 patents at rank #41,510, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #41,510 in granted patent volume.
Other assignees with the most granted patents in Magna-sonic's primary technology class.
Magna-sonic's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
18 Top 95% higher than 5% 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 | 3 | 50.0% |
| 2016 | 3 | 50.0% |
Top 3 of 3 technology areas
Overall rank by patents
#41,510
Across all tracked assignees
18.4 out of 100
How to use this portfolio
Magna-sonic's 6 grants land it in the top 95% 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.