USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Sefar Ag

USPTO PatentsView assignee record - 11 granted patents across 26 technology areas, active 2016–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B01D (SEPARATION).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

12.6

Avg claims per patent

-43%

5-year filing velocity

The verdict

Sefar holds 11 US patents across 26 technology areas, rank #25,232 of 50,000 tracked assignees.

#25,232
of 50,000 US assignees by volume: Top 53%
by Innovation Score (34.1/100): 12.6
avg claims per patent: -43%
filing velocity, last 5 yrs

Portfolio overview

Sefar Ag has been granted 11 US utility patents between 2016 and 2025, placing Sefar Ag at rank #25,232 across all assignees tracked by PlainPatent. This portfolio spans 26 distinct Cooperative Patent Classification (CPC) subclasses, averaging 12.6 claims per patent with primary concentration in B01D (SEPARATION). As a Foreign Corporation, Sefar Ag is one of the more focused assignees in the PatentsView dataset. By volume, Sefar sits between Secretlab SG Pte. Ltd. (11 patents, rank #25,228) and Senseair AB (11 patents, rank #25,236) - the closest US assignees by grant volume. The composite Innovation Score of 34.1/100 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 4 grants, compared with 7 in the 2015–2019 window, a -43% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. Sefar Ag's 12.6 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 26 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Sefar Ag against peers pursuing similar technology classes.

Secretlab SG Pte

11
Sectra AB

11
Secure Communicat…

11
Securitymetrics

11
Segway

11
Semiconductor Ene…

11
Senscomm Semicond…

11
Senseair AB

11
Sefar ◀

11

What this shows Sefar holds 11 patents at rank #25,232, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Sefar's Innovation Score vs. every tracked assignee

Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)

34 Top 53% higher than 47% 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

USPTO utility patent grants by year · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Sefar Ag patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	18.2%
2018	2	18.2%
2019	3	27.3%
2020	2	18.2%
2021	1	9.1%
2025	1	9.1%

Which technologies does Sefar Ag patent most?

B01D - SEPARATION 6

D03D - WOVEN FABRICS; METHODS OF WEAVING; LOOMS 5

D10B - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES 4

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 4

D06M - TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS 4

H10F - INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION 3

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 3

D04H - MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL ; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION 2

D01D - MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS 2

D06P - DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM 2

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 1

H10K - ORGANIC ELECTRIC SOLID-STATE DEVICES 1

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 1

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 1

H10H - INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS 1

Top 15 of 26 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#25,232

Across all tracked assignees

Innovation Score

34.1 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Sefar Ag hold?

Sefar Ag holds 11 US granted patents filed between 2016 and 2025, spanning 26 technology areas.

What is Sefar Ag's Innovation Score?

Sefar Ag has an Innovation Score of 34.1 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sefar Ag focus on?

Sefar Ag's top technology area is B01D (SEPARATION) with 6 patents. The company has filed patents in 26 CPC subclasses total.

Is Sefar Ag's patent filing rate increasing or decreasing?

Sefar Ag's recent filing velocity is -43% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Sefar Ag's patents?

Sefar Ag's patents average 12.6 claims each. This falls within the standard range, providing solid legal coverage.

How is the Sefar Ag 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

Sefar's 11 grants land it in the top 53% 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 - Sefar ranks #25,232 of 50,000. Top 50 holders
Most of this portfolio concentrates in B01D - see who else leads that technology area. B01D 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.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team

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.