Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
MG

Marc Graaf — 32 Patents

HSHanon Systems: 25 patents #3 of 877Top 1%
HCHalla Visteon Climate Control: 4 patents #3 of 161Top 2%
VTVisteon Global Technologies: 3 patents #313 of 1,929Top 20%
AAAudi Ag: 1 patents #1,252 of 2,982Top 45%
Krefeld, DE: #27 of 1,103 inventorsTop 3%
Overall (All Time): #110,428 of 4,157,543Top 3%
32 Patents All Time
Marc Graaf has been granted 32 US patents while listed as an inventor at Hanon Systems. The first was granted in 2007 and the most recent in October 2023. Marc Graaf ranks #110,428 of 4,157,543 US inventors in our database (top 2.7%). Patent records list Marc Graaf in Krefeld, DE.

Issued Patents All Time

Showing 1–25 of 32 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11781657 3-2 way expansion valve Daniel Zens, Toni Spies, Dominik Wiechard, Markus Herzog, Corinne Le Pellec 2023-10-10
10989451 Oil management in a refrigeration system—compressor oil cooler integrated into gascooler Navid Durrani, Toni Spies, Daniel Zens, Roberto Della Rovere, Herr René Junker +4 more 2021-04-27
10914504 Device and method for icing prevention regulation for heat pump evaporators Engelbert Schmitz, Peter Heyl, Christian Rebinger, Dirk Schroeder 2021-02-09
10875385 Climate control system of a motor vehicle and method for operating the climate control system Navid Durrani, Martin Hötzel, Tobias Haas, Gerald Richter 2020-12-29
10787061 Heat pump system with additional heat source for evaporation of refrigerant Navid Durrani, Christoph Bara, Jörn Fröhling 2020-09-29
10710433 AC-system with very high cooling capacity Roman Heckt 2020-07-14
10712064 Apparatus for separating and storing liquid refrigerant in refrigerant circuit Toni Spies, Peter Heyl, Hartmut Helm, Heinrich Ittner, Jiri Dvorsky 2020-07-14
10571164 Air-conditioning system of a motor vehicle and method for operating the air-conditioning system Navid Durrani, Roberto Della Rovere 2020-02-25
10449834 Refrigerant circuit for a vehicle air conditioning system with heat pump Gerald Richter 2019-10-22
10363792 Air-conditioning system for cooling and drying air in passenger compartment of vehicle Gerald Richter, Julia Roeb, Toni Spies 2019-07-30
10279655 HV iCool light HVAC Gerald Richter 2019-05-07
10252596 Chiller integration into vcool system Toni Spies, Gerald Richter 2019-04-09
10160290 Modular designed high performance heat pump system for a vehicle with low waste heat radiation Navid Durrani, Roberto Della Rovere 2018-12-25
10040334 R744 based heat pump system with a water cooled gas cooler for cooling, heating and dehumidification of an EV/HEV Navid Durrani, Roberto Della Rovere 2018-08-07
10017031 Heat exchanger arrangement for heat uptake and air conditioning system of a motor vehicle Torsten Klein, Roberto Della Rovere, Gerald Richter, Felix Girmscheid 2018-07-10
10017028 Heat exchanger for refrigerant circuitry Peter Heyl, Tobias Haas, Milan Moravek, Jiri Dobner, Jan Gregus-Kollar 2018-07-10
9963010 Air conditioning system for an automobile Joern Froehling, Karl Schlesinger, Gerald Richter, Balthasar Schillemeit, Frank Schmitz +1 more 2018-05-08
9897356 Refrigeration plant with refrigerant evaporator arrangement and process for parallel air and battery contact cooling Andreas Emmerich, Stephan Köster, Felix Girmscheid, Peter Heyl, Dominik Prinz 2018-02-20
9821625 Heat exchanger assembly for heat absorption and climate control system of a motor vehicle Roberto Della Rovere, Navid Durrani 2017-11-21
9821627 Air-conditioning system for a motor vehicle Roberto Della Rovere, Navid Durrani 2017-11-21
9683671 Valve block assembly for several valves Corinne Le Pellec 2017-06-20
9530994 Heat exchanger for temperature control of vehicle batteries Eric Pierre, Florian Wieschollek, Felix Girmscheid 2016-12-27
9481225 Modular air conditioning system with heat pump functionality Gerald Richter, Florian Wieschollek 2016-11-01
9346336 Refrigerant circuit of an air conditioner with heat pump Tobias Haas 2016-05-24
9242527 Refrigerant circuit of an HVAC system of a motor vehicle Florian Wieschollek, Christian Rebinger, Dirk Schroeder 2016-01-26