JM

Johan Marra

Koniniklijke Philips N.V.: 9 patents #821 of 7,486Top 15%
Philips: 7 patents #660 of 7,731Top 9%
Overall (All Time): #295,327 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
10859485 Particle sensor and sensing method 2020-12-08
10710098 Cleaning device for cleaning an air-ionizing part of an electrode 2020-07-14
10364994 Air humidification and/or purification Declan Patrick Kelly, Weizhong Chen, Cornelis Reinder Ronda, John Robert McGarva, Xuan Zhang +2 more 2019-07-30
10299623 Coffee dispensing apparatus Harmina Christina Zeijlstra, Job Lipsch, Mart Kornelis-Jan Te Velde, Karel Johannes Adrianus Van Den Aker, Jasper De Vreede 2019-05-28
9943800 Apparatus for gas cleaning 2018-04-17
9579664 Cleaning device for cleaning the air-ionizing part of an electrode 2017-02-28
9417207 Gas sensing apparatus Johan Hendrik Klootwijk, Jacobus Bernardus Giesbers, Nico Maris Adriaan de Wild, Marcel Bulder, Rogier Adrianus Henrica Niessen +1 more 2016-08-16
8701466 Device for characterizing the evolution over time of a size distribution of electrically-charged airborne particles in an airflow 2014-04-22
8627733 Device for characterizing a size distribution of electrically-charged airborne particles in an air flow 2014-01-14
8452489 Controlling system for controlling an air handling system 2013-05-28
8402815 Air pollution sensor system 2013-03-26
8123840 Electrostatic particle filter 2012-02-28
7857892 Air pollution sensor system 2010-12-28
7855449 Cooling device for a light-emitting semiconductor device and a method of manufacturing such a cooling device Jan De Graff, Céline Catherine Sarah Nicole, Marcus Antonius Verschuuren, Hans Van Sprang, Theo Arnold Kop +1 more 2010-12-21
7836751 Ultra fine particle sensor 2010-11-23
7722211 Light engine Hans Van Sprang 2010-05-25