Patents by Inventor Jernej Pirnar

Jernej Pirnar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Battery cooling system and method for operating a battery cooling system
    Patent number: 12725855
    Abstract: In an embodiment a heat exchanger includes a base body, cooling fins protruding from a first side of the base body, first channels integrated in the base body and connected to a first connector and a second connector, the first channels configured to guide a first coolant and second channels integrated in the base body and connected to a first connector and a second connector, the second channels configured to guide a second coolant, wherein the first channels are separate from the second channels and wherein the heat exchanger is capable of being integrated in an outside surface of a vehicle.
    Type: Grant
    Filed: October 31, 2023
    Date of Patent: September 1, 2026
    Assignee: Pipistrel d.o.o.
    Inventor: Jernej Pirnar
  • Cooling system for a vehicle engine unit and method for filling such a cooling system
    Patent number: 12545424
    Abstract: A vehicle including a boom having a first opening at a first surface and a second opening at an opposite second surface, a channel extending in a first direction between the first and second openings and connecting the first opening with the second opening and a heat exchanger arranged in the channel, where the heat exchanger is tilted with respect to the first direction.
    Type: Grant
    Filed: October 31, 2023
    Date of Patent: February 10, 2026
    Assignee: Pipistrel d.o.o.
    Inventor: Jernej Pirnar
  • Vertical takeoff and landing aircraft
    Patent number: 12491995
    Abstract: A vertical takeoff and landing (VTOL) aircraft includes a maximum takeoff weight (MTOW) of about 1700-kg, a cruising speed of about 80-knots equivalent airspeed (EAS) to about 100-knots EAS, a nominal range of about 300-km, a nominal flight time of about 4-hours, and at least one pair of rotors configured to provide vertical thrust. Each rotor of the at least one pair includes an about 2-meter propeller diameter, a disk loading of about 67-kg/m2 to about 110-kg/m2, and an operating speed of about 1800 rotations-per-minute (RPM) to about 2700-RPM.
    Type: Grant
    Filed: February 13, 2024
    Date of Patent: December 9, 2025
    Assignee: Pipistrel d.o.o.
    Inventors: Gregor Čretnik, David Eržen, Rok Lapuh, Andres Žnidar, Tine Tomažič, Blaž Močan, Jernej Drofelnik, Jernej Pirnar, Tadej Kosel, Antonio Righetti, Thomas Koopman, Matej Andrejašič
  • Vertical Takeoff and Landing Aircraft
    Publication number: 20250256841
    Abstract: A vertical takeoff and landing (VTOL) aircraft includes a maximum takeoff weight (MTOW) of about 1700-kg, a cruising speed of about 80-knots equivalent airspeed (EAS) to about 100-knots EAS, a nominal range of about 300-km, a nominal flight time of about 4-hours, and at least one pair of rotors configured to provide vertical thrust. Each rotor of the at least one pair includes an about 2-meter propeller diameter, a disk loading of about 67-kg/m2 to about 110-kg/m2, and an operating speed of about 1800 rotations-per-minute (RPM) to about 2700-RPM.
    Type: Application
    Filed: February 13, 2024
    Publication date: August 14, 2025
    Inventors: Gregor Cretnik, David Eržen, Rok Lapuh, Andres Žnidar, Tine Tomažic, Blaž Mocan, Jernej Drofelnik, Jernej Pirnar, Tadej Kosel, Antonio Righetti, Thomas Koopman, Matej Andrejašic
  • COOLING SYSTEM FOR A VEHICLE ENGINE UNIT AND METHOD FOR FILLING SUCH A COOLING SYSTEM
    Publication number: 20250136288
    Abstract: In an embodiment a vehicle includes a boom having a first opening at a first surface and a second opening at an opposite second surface, a channel extending in a first direction between the first and second openings and connecting the first opening with the second opening and a heat exchanger arranged in the channel, wherein the heat exchanger is tilted with respect to the first direction.
    Type: Application
    Filed: October 31, 2023
    Publication date: May 1, 2025
    Inventor: Jernej Pirnar
  • BATTERY COOLING SYSTEM AND METHOD FOR OPERATING A BATTERY COOLING SYSTEM
    Publication number: 20250140977
    Abstract: In an embodiment a heat exchanger includes a base body, cooling fins protruding from a first side of the base body, first channels integrated in the base body and connected to a first connector and a second connector, the first channels configured to guide a first coolant and second channels integrated in the base body and connected to a first connector and a second connector, the second channels configured to guide a second coolant, wherein the first channels are separate from the second channels and wherein the heat exchanger is capable of being integrated in an outside surface of a vehicle.
    Type: Application
    Filed: October 31, 2023
    Publication date: May 1, 2025
    Inventor: Jernej Pirnar