Inventor

Sipke Theo Douma

Inventor

Haren, NL

Overview

10→

Patents

2013–2021

Patent span

Human necessities

Primary field (CPC A)

Patents· 10 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A47Jprimary

A47JKitchen equipment71%

A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for7%

A23VIndexing scheme relating to foods, foodstuffs or non-alcoholic beverages and lactic or propionic acid bacteria used in foodstuffs or food preparation7%

F24CDomestic stoves or ranges7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

PatentTitleYear

11,022,319Radiation grill2021 11,013,368Radiation grill2021 11,006,782Radiation grill2021 9,408,494'Beverage maker, comprising an easy-to-clean duct system having at least one duct for conveying a fluid beverage ingredient'2016 9,392,903'Device for frothing a liquid'2016 9,044,118'Brewing unit for coffee brewing'2015 8,991,305'Milk frothing system'2015 8,951,357'Device for whisking milk and method for cleaning such a device'2015 8,752,477'Method for controlling a pressure of hot water which is used in a process of making espresso by adjusting size of brewing chamber'2014 8,372,462'Device and method for frothing a liquid'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2016Patents assigned to DOUMA SIPKE THEO (7)· patent assignee history

2013Patents assigned to KONINKL PHILIPS ELECTRONICS NV (1)· patent assignee history

2013–2021Based in Haren, NL· patent location history

2014–2016Patents assigned to KONINKL PHILIPS NV (5)· patent assignee history

2014Based in Hoogeveen, NL· patent location history

2015–2021Based in Eindhoven, NL· patent location history

2015Based in Drachten, NL· patent location history

2016–2021Patents assigned to KONINKLIJKE PHILIPS NV (4)· patent assignee history

2016Patents assigned to NOORDHUIS JOEKE (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DOUMA SIPKE THEOself	7	2013–2016
KONINKL PHILIPS NV	5	2014–2016
KONINKLIJKE PHILIPS NV	4	2016–2021
KONINKL PHILIPS ELECTRONICS NV	1	2013
NOORDHUIS JOEKE	1	2016

Locations

Location	Patents	Span
Haren, NL	4	2013–2021
Eindhoven, NL	3	2015–2021
Drachten, NL	2	2015
Hoogeveen, NL	1	2014