• 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: 328

10-year publication summary

44
34
22
29
23
23
15
19
22
14
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Nortek Air Solutions Canada, Inc.
123
28
Daikin Industries, Ltd.
10146
23
Mitsubishi Electric Corporation
46814
20
Core Energy Recovery Solutions Inc.
27
12
Panasonic Intellectual Property Management Co., Ltd.
32296
8
University of Saskatchewan
483
8
Zehnder Group International AG
400
8
King Fahd University of Petroleum and Minerals
1352
6
2ndAir B.V.
7
5
Commissariat à l'énergie atomique et aux energies alternatives
10950
4
Mayekawa Mfg. Co., Ltd.
333
4
Midea Group Co., Ltd.
4664
4
NovelAire Technologies, LLC
9
4
Taikisha Ltd.
121
4
Therma-Stor LLC
135
4
Sharp Kabushiki Kaisha
18646
4
Copeland LP
694
4
Alliance for Sustainable Energy, LLC
827
3
DPoint Technologies Inc.
7
3
GD Midea Heating & Ventilating Equipment Co., Ltd.
679
3
Other owners 169