Overall rank by patents
#48,497
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView US Corporation
Lumsden Corporation
USPTO PatentsView assignee record - 5 granted patents across 3 technology areas, active 2015–2018. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B07B (SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATE).
5
Total patents granted
3
CPC technology areas
21.4
Avg claims per patent
-100%
5-year filing velocity
The verdict
Lumsden holds 5 US patents across 3 technology areas, rank #48,497 of 50,000 tracked assignees.
- #48,497
- of 50,000 US assignees by volume
- Top 83%
- by Innovation Score (25.1/100)
- 21.4
- avg claims per patent
- -100%
- filing velocity, last 5 yrs
Portfolio overview
Lumsden Corporation has been granted 5 US utility patents between 2015 and 2018, placing Lumsden Corporation at rank #48,497 across all assignees tracked by PlainPatent. This portfolio spans 3 distinct Cooperative Patent Classification (CPC) subclasses, averaging 21.4 claims per patent with primary concentration in B07B (SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATE). As a US Corporation, Lumsden Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Lumsden sits between Lumien Enterprise, Inc. (5 patents, rank #48,493) and Lux Optics Incorporated (5 patents, rank #48,501) - the closest US assignees by grant volume. The composite Innovation Score of 25.1/100 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 5 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. Lumsden Corporation's 21.4 average claims per patent reflects complex, broadly scoped inventions that are difficult for competitors to design around, while specialization in 3 subclasses reflects a tightly scoped invention area. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Lumsden Corporation against peers pursuing similar technology classes.
Who files at Lumsden's volume?
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
- Lumien Enterprise
Lumien Enterprise, Inc.
5 patents
- Lumina Adhesives…
Lumina Adhesives AB
5 patents
- Luminix
Luminix, Inc.
5 patents
- Luminook Lighting
Luminook Lighting, LLC
5 patents
- Lunapbc
LunaPBC
5 patents
- Lutris Pharma
Lutris Pharma Ltd.
5 patents
- Lutzy
Lutzy Inc.
5 patents
- Lux Optics Incorp…
Lux Optics Incorporated
5 patents
- Lumsden ◀
Lumsden Corporation
5 patents
What this shows Lumsden holds 5 patents at rank #48,497, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
Companies ranked near Lumsden
By rank, the assignees closest to #48,497 in granted patent volume.
- Lumien Enterprise, Inc. #48,493 · 5 patents
- Lumina Adhesives AB #48,494 · 5 patents
- Luminix, Inc. #48,495 · 5 patents
- Luminook Lighting, Llc #48,496 · 5 patents
- Lunapbc #48,498 · 5 patents
- Lutris Pharma Ltd. #48,499 · 5 patents
- Lutzy Inc. #48,500 · 5 patents
- Lux Optics Incorporated #48,501 · 5 patents
Leaders in B07B (Separating Solids FROM Solids BY Sieving)
Other assignees with the most granted patents in Lumsden's primary technology class.
Lumsden's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
25 Top 83% higher than 17% 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
Grants by year
Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 1 | 20.0% |
| 2016 | 2 | 40.0% |
| 2017 | 1 | 20.0% |
| 2018 | 1 | 20.0% |
Which technologies does Lumsden Corporation patent most?
Top 3 of 3 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Specialized
Claim Depth Complex
Velocity Declining
Frequently Asked Questions
How many patents does Lumsden Corporation hold?
Lumsden Corporation holds 5 US granted patents filed between 2015 and 2018, spanning 3 technology areas.
What is Lumsden Corporation's Innovation Score?
Lumsden Corporation has an Innovation Score of 25.1 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Lumsden Corporation focus on?
Lumsden Corporation's top technology area is B07B (SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL) with 4 patents. The company has filed patents in 3 CPC subclasses total.
Is Lumsden Corporation's patent filing rate increasing or decreasing?
Lumsden Corporation's recent filing velocity is -100% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for Lumsden Corporation's patents?
Lumsden Corporation's patents average 21.4 claims each. This indicates complex, broadly scoped patents that are harder for competitors to design around.
How is the Lumsden Corporation 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.
How to use this portfolio
Lumsden's 5 grants land it in the top 83% by Innovation Score, but volume alone doesn't tell you where the strength sits.
- Read that count against the largest US assignees before treating it as dominance - Lumsden ranks #48,497 of 50,000. Top 50 holders
- Most of this portfolio concentrates in B07B - see who else leads that technology area. B07B leaders
- Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works
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.