• All sections
  • F - Mechanical engineeringlightingheatingweaponsblasting
  • F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
  • F24F 3/147 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidificationAir-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by dehumidification with both heat and humidity transfer between supplied and exhausted air

Patent holdings for IPC class F24F 3/147

Total number of patents in this class: 333

10-year publication summary

38
22
35
25
25
17
23
26
17
4
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Nortek Air Solutions Canada, Inc.
125
28
Daikin Industries, Ltd.
10401
23
Mitsubishi Electric Corporation
47655
19
Core Energy Recovery Solutions Inc.
26
12
Panasonic Intellectual Property Management Co., Ltd.
33634
8
University of Saskatchewan
486
8
Zehnder Group International AG
398
8
King Fahd University of Petroleum and Minerals
1496
6
Blue Frontier, Inc.
38
6
2ndAir B.V.
7
5
Commissariat à l'énergie atomique et aux energies alternatives
11020
4
Mayekawa Mfg. Co., Ltd.
345
4
Midea Group Co., Ltd.
4860
4
NovelAire Technologies, LLC
9
4
Taikisha Ltd.
124
4
Therma-Stor LLC
134
4
Sharp Kabushiki Kaisha
18623
4
Copeland LP
695
4
DPoint Technologies Inc.
7
3
GD Midea Heating & Ventilating Equipment Co., Ltd.
745
3
Other owners 172