Patent Oppositions in air conditioning and ventilation systems industry

Explore the competitive field of air conditioning and ventilation systems where companies are constantly innovating to stay ahead. Discover the latest patent opposition trends, top companies filing and facing patent oppositions, and the most recent patents under dispute. Stay informed on patent activity in air conditioning and ventilation systems technology and learn how to protect your intellectual property.

Explore the top companies that have filed the most patent oppositions in the technology industry.

Explore the top companies that have faced the most patent oppositions in the technology industry.

Explore the top law firms that have filed the most patent oppositions in the technology industry.

Patent challenges are becoming increasingly common in the air conditioning and ventilation systems industry as companies work to protect their innovations in a highly competitive market. These legal battles can significantly impact the development and release of new technologies. Below is a list of the latest patents that have been opposed in the air conditioning and ventilation systems industry, offering a snapshot of the ongoing struggles over intellectual property rights. For anyone involved in this industry, understanding these patent disputes is essential for navigating its future.

Last updated on: Sep 10, 2026
Patent NumberTitleApplicantOpposition DateOpposition Name
Connection Module For Connecting An External Device With An Internal Device Of A Heat Exchanger System In A Fluid-Conducting MannerDOYMAJul 8, 2026KRASO GMBH & CO. KG
Volumetric Flow Regulator For An Air Conditioning And Ventilation SystemTROXJun 9, 2026LINDAB VENTILATION
Volumetric Flow Regulator For An Air Conditioning And Ventilation SystemTROXJun 3, 2026FLAKTGROUP FINLAND
Fluid Transportation Network And MethodBELIMO HOLDINGMay 28, 2026KSB
Respiratory Pressure DeviceRESMEDMay 26, 2026FISHER & PAYKEL HEALTHCARE
Line Voltage Powered Thermostat With Wireless CommunicationWARMBOARDApr 29, 2026SEWERIN
Air ConditionerDAIKIN INDUSTRIESApr 8, 2026MEXICHEM FLUOR DE CV
Method For Operating An Energy Supply System And Energy Supply System For Providing Cooling Capacity And/Or Heating PowerVIESSMANN HOLDINGFeb 19, 2026CANZLER & BERGMEIER
Fire Damper With A Housing Having At Least One Housing Wall And With A Flap Leaf Mounted In Such A Manner That It Can Be Pivoted About An Axis Of Rotation Between An Open Position And A Closed PositionTROXFeb 16, 2026WILDEBOER BAUTEILE
A System, An Arrangement And Method For Heating And CoolingQUANTITATIVE HEATDec 17, 2025KOLSTER

To stay ahead in the competitive air conditioning and ventilation systems industry, companies are constantly innovating. Here are the top patents facing oppositions in the air conditioning and ventilation systems industry. Stay informed on the latest opposition trends and learn how to protect your intellectual property.

Last updated on: Sep 10, 2026
Patent NumberPublication DateTitleApplicantTotal Oppositions
Apr 12, 2023Method And System For Temporary Supply Of Energy To BuildingsJRN5
Mar 7, 2018A Modular Smoke Ventilation System With Serial Control PointsWINDOWMASTER3
Jun 26, 2019Relining A Ventilation SystemLINERVENT3
Apr 23, 2025Configuration Of A Ventilation System By Randomized SelectionSWEGON OPERATIONS2
Dec 12, 2018Device And Method For Controlling A Supply Air Flow At An Air Treatment SystemFLKT WOODS2
Apr 23, 2025Configuration Of A Ventilation System By Component SelectionSWEGON OPERATIONS2
May 17, 2017Air Filter ModuleLANGNER2
Jan 1, 2020Ventilation FlapAUMLLER AUMATIC2
Oct 16, 2024Recessed ProfileLUNOS LFTUNGSTECHNIK FR RAUMLUFTSYSTEME2
Nov 24, 2021Assembly For Preventing The Spread Of Fire In A Building With At Least One Building Wall Made Of Wood Building MaterialsWILDEBOER2