USPTO 2015–2025 USPTO PatentsView US Corporation

Fosbel, Inc.

USPTO PatentsView assignee record - 26 granted patents across 17 technology areas, active 2016–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F27D (DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

8.2

Avg claims per patent

-27%

5-year filing velocity

The verdict

Fosbel holds 26 US patents across 17 technology areas, rank #11,649 of 50,000 tracked assignees.

#11,649
of 50,000 US assignees by volume: Top 54%
by Innovation Score (34.0/100): 8.2
avg claims per patent: -27%
filing velocity, last 5 yrs

Portfolio overview

Fosbel, Inc. has been granted 26 US utility patents between 2016 and 2024, placing Fosbel, Inc. at rank #11,649 across all assignees tracked by PlainPatent. This portfolio spans 17 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.2 claims per patent with primary concentration in F27D (DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE). As a US Corporation, Fosbel, Inc. is one of the more focused assignees in the PatentsView dataset. By volume, Fosbel sits between Extremity Medical, Llc (26 patents, rank #11,645) and Frito-lay Trading Company Gmbh (26 patents, rank #11,653) - the closest US assignees by grant volume. The composite Innovation Score of 34.0/100 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 11 grants, compared with 15 in the 2015–2019 window, a -27% 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. Fosbel, Inc.'s 8.2 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 17 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Fosbel, Inc. against peers pursuing similar technology classes.

Extremity Medical

26
Fabbrica D'armi P…

26
Facet

26
First American Fi…

26
Federal-mogul Wie…

26
Fender Musical In…

26
Flatiron Health

26
Frito-lay Trading

26
Fosbel ◀

26

What this shows Fosbel holds 26 patents at rank #11,649, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Fosbel

By rank, the assignees closest to #11,649 in granted patent volume.

Leaders in F27D (Details OR Accessories OF Furnaces)

Other assignees with the most granted patents in Fosbel's primary technology class.

Fosbel's Innovation Score vs. every tracked assignee

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

34 Top 54% higher than 46% 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 · 2016–2024

Grants by year

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

View data table

Fosbel, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	7.7%
2017	1	3.8%
2018	4	15.4%
2019	8	30.8%
2020	1	3.8%
2021	4	15.4%
2022	5	19.2%
2024	1	3.8%

Which technologies does Fosbel, Inc. patent most?

F27D - DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE 14

C03B - MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES 9

C10B - DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS 7

B66C - CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES 5

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 5

F23M - CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR 3

E04B - GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS 2

F27B - FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS 2

B66B - ELEVATORS; ESCALATORS OR MOVING WALKWAYS 2

F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 1

B08B - CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 1

Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION 1

E04H - BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL 1

E04C - STRUCTURAL ELEMENTS; BUILDING MATERIALS 1

C04B - LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE ; CERAMICS ; REFRACTORIES; TREATMENT OF NATURAL STONE 1

Top 15 of 17 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#11,649

Across all tracked assignees

Innovation Score

34.0 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 Fosbel, Inc. hold?

Fosbel, Inc. holds 26 US granted patents filed between 2016 and 2024, spanning 17 technology areas.

What is Fosbel, Inc.'s Innovation Score?

Fosbel, Inc. has an Innovation Score of 34.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Fosbel, Inc. focus on?

Fosbel, Inc.'s top technology area is F27D (DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE) with 14 patents. The company has filed patents in 17 CPC subclasses total.

Is Fosbel, Inc.'s patent filing rate increasing or decreasing?

Fosbel, Inc.'s recent filing velocity is -27% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Fosbel, Inc.'s patents?

Fosbel, Inc.'s patents average 8.2 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Fosbel, Inc. 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

Fosbel's 26 grants land it in the top 54% 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 - Fosbel ranks #11,649 of 50,000. Top 50 holders
Most of this portfolio concentrates in F27D - see who else leads that technology area. F27D 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 · May 15, 2026

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.