Particle sensor and sensing method
US-10859485-B2 · Dec 8, 2020 · US
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Marra Johan patents
Marra Johan is listed as an inventor on 19 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Marra Johan |
| Total patents | 19 |
| First publication | May 7, 2015 |
| Latest publication | Dec 8, 2020 |
Notable patents
Publications ranked by popularity score, then publication date.
Cleaning device for cleaning an air-ionizing part of an electrode
US-10710098-B2 · Jul 14, 2020 · US
Air humidification and/or purification
US-10364994-B2 · Jul 30, 2019 · US
Coffee dispensing apparatus
US-10299623-B2 · May 28, 2019 · US
Gas filtration system and method
US-2018283707-A1 · Oct 4, 2018 · US
Air humidification and/or purification
US-2018274804-A1 · Sep 27, 2018 · US
Gas filtration system and method
US-2018236399-A1 · Aug 23, 2018 · US
Particle sensor and sensing method
US-2018217046-A1 · Aug 2, 2018 · US
Surface treatment device
US-2018185530-A1 · Jul 5, 2018 · US
Apparatus for gas cleaning
US-9943800-B2 · Apr 17, 2018 · US
Recent patents
Latest publications not already listed above.
Pleated filter structure for air cleaning and air filtering method
US-2017326493-A1 · Nov 16, 2017 · US
Coffee dispensing apparatus
US-2017156542-A1 · Jun 8, 2017 · US
Air quality alert system and method
US-2017154517-A1 · Jun 1, 2017 · US
Cleaning device for cleaning an air-ionizing part of an electrode
US-2017144167-A1 · May 25, 2017 · US
Cleaning device for cleaning the air-ionizing part of an electrode
US-9579664-B2 · Feb 28, 2017 · US
Gas sensing apparatus
US-9417207-B2 · Aug 16, 2016 · US
Coffee machine for providing coffee brew with reduced caffeine content
US-2016192806-A1 · Jul 7, 2016 · US
An apparatus for gas cleaning
US-2016166974-A1 · Jun 16, 2016 · US
Method and device for grinding coffee beans
US-2015122131-A1 · May 7, 2015 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Koninklijke Philips Nv | 16 |
| Koninkl Philips Nv | 3 |
| Marra Johan | 2 |
| Klootwijk Johan Hendrik | 1 |
| Giesbers Jacobus Bernardus | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| F24F11/30 | 5 |
| B03C2201/06 | 5 |
| B03C3/41 | 5 |
| B01D53/346 | 4 |
| F24F2110/20 | 4 |