PlainPatent

CPC technology class · F24

F24V - Collection

Collection, production or use of heat not otherwise provided for. 201 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

201
US patents granted
#8/8
in F24
0.7%
F24 class share
-26%
5-yr velocity

The verdict

According to USPTO PatentsView, Collection ranks #599 of 670 CPC technology areas - 201 US patents granted since 2015, with recorded grant volume down 26% over five years.

#599
of 670 CPC technology areas
201
US patents granted, 2015–2025
Tempra Technology
leading assignee (10)
-26%
grant velocity, last 5 yrs

How F24V's grant cadence moved

Between 2020–2024, F24V recorded 78 grants versus 105 in 2015–2019 (-26% equal-window velocity). Across complete years, output peaked in 2017 at 29 grants and bottomed in 2023 at 12 (+142% peak-over-trough). Lead assignee Tempra Technology, Inc. holds 5.0% of the class ; the top three share 11.9%.

Leaderboard read

F24V concentration, lead at 5.0%

Tempra Technology, Inc. leads this historical grant record at 5.0% of F24V - us corporation assignees hold 69% of class grants (53 of 77). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
5.0%

10 of 201 grants

Top three share
11.9%

of the class's recorded grants

Lead over #2
3

more grants than Light Field Lab, Inc.

Where F24V sits inside F24

Among 8 subclasses in F24 (HEATING; RANGES; Ventilating), F24V ranks #8 and holds 0.7% of the parent class's 27,261 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

F24F 14,049 F24C 3,868 F24S 3,307 F24H 2,950 F24D 2,041 F24T 436 F24B 409

Rising assignees active in F24V

Company-wide grant multiples (2022–2024 vs 2019–2021) among assignees with ≥5 patents in this subclass. Growth is company-wide; class patent counts are subclass-specific.

  1. #1 Clean Planet Inc. 4.00x 1 → 4 company-wide · 7 in F24V
  2. #2 Light Field Lab, Inc. 1.90x 20 → 38 company-wide · 7 in F24V
  3. #3 Tempra Technology, Inc. 1.80x 5 → 9 company-wide · 10 in F24V
  4. #4 Alexza Pharmaceuticals, Inc. 1.80x 5 → 9 company-wide · 5 in F24V
  5. #5 Kobayashi Pharmaceutical Co., Ltd. 1.63x 27 → 44 company-wide · 5 in F24V

F24V grants by year, peak 2017 (29)

US utility-patent grants per year in F24V, 2015–2025 - recent five years are down 26% versus 2015–2019.

1015202530 20152016201720182019202020212022202320242025 11

Who leads F24V?

The 12 most active assignees in Collection, Production OR USE OF Heat NOT Otherwise Provided FOR - wider bars mean more grants

patents

What this shows Tempra Technology is the most active filer in F24V, holding 10 of the 201 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

Source USPTO PatentsView, granted utility patents As of 2015–2025 grant years
View data table
Top patent holders in CPC subclass F24V
Rank Company Patents in F24V
#1 Tempra Technology, Inc. 10
#2 Light Field Lab, Inc. 7
#3 Clean Planet Inc. 7
#4 Forever Young International, Inc. 6
#5 Kobayashi Pharmaceutical Co., Ltd. 5
#6 Alexza Pharmaceuticals, Inc. 5
#7 Highland Fluid Technology 4
#8 HeatGenie, Inc. 4
#9 ConleyMax Inc. 3
#10 Miura Co., Ltd. 2
#11 Crystal Lagoons Technologies, Inc. 2
#12 Efficient Energy GMBH 2
#13 MAC, Inc. 2
#14 Linde Engineering North America, Inc. 2
#15 Rechargeable Battery Corporation 2
#16 Silgan Containers LLC 1
#17 HS Marston Aerospace Limited 1
#18 Polaris Sensor Technologies, Inc. 1
#19 Preco, LLC 1
#20 Wacker Nueson Production Americas LLC 1

Footprint here vs. claim strategy

Each dot is a leading F24V assignee, placed by how many patents it holds in this class (horizontal) against its company-wide average claims per patent (vertical) - a read on whether the class is led by broad-but-shallow filers or focused deep-claim players.

Top 14 F24V assignees by class footprint. Bubble size = patents in F24V. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 0204060 024681012 Patents in F24V Avg claims / patent (company-wide) Tempra TechnologyLight Field LabClean PlanetForever Young…Kobayashi Pharmaceutic…Alexza PharmaceuticalsHighland Fluid…HeatgenieConleymaxMiuraCrystal LagoonsEfficient EnergyMacLinde Engineering…
Top 14 F24V assignees by class footprint. Bubble size = patents in F24V. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Questions about F24V

Which company holds the most patents in F24V?
Tempra Technology, Inc. leads F24V with 10 patents (5.0% of the subclass). By PatentsView assignee type, us corporations account for 69% of class grants.
Which F24V assignees grew fastest recently?
Among assignees with ≥5 grants in F24V, Clean Planet Inc. shows the highest company-wide grant multiple (4.00x: 1 grants in 2019–2021 → 4 in 2022–2024) while holding 7 patents in this subclass. Growth is company-wide, not class-only.
How does F24V compare inside parent class F24?
Inside F24 (HEATING; RANGES; Ventilating), F24V ranks #8 of 8 subclasses by grant volume and holds 0.7% of the parent class total. The largest sibling is F24F (14,049 grants).

What to do with this data

F24V in context - here's where to go next.

  • Tempra Technology, Inc. leads F24V with 10 grants in this class. See full portfolio
  • F24V ranks #599 of 670 by grant volume among all tracked CPC technology areas. See the ranking
  • Inside parent class F24, the largest sibling subclass is F24F with 14,049 grants. Explore F24F

Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.

Methodology - F24V figures are USPTO PatentsView granted-utility totals for this subclass (201 grants in the tracked window).

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.