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Karl E. Sewalt
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Schiedam, NL
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Patents Grants
last 30 patents
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Patent Grant
Sealing plug for sealing hollow flotation elements for use in a cov...
Patent number
7,594,590
Issue date
Sep 29, 2009
Deceuninck NV
Kees R. Kooijmans
E04 - BUILDING
Information
Patent Grant
Flotation device
Patent number
D583005
Issue date
Dec 16, 2008
Deceuninck N.V.
Wim Grymonprez
D21 - Games, toys, and sports goods
Patents Applications
last 30 patents
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Patent Application
PHOTOVOLTAIC BUILDING ELEMENT
Publication number
20210367088
Publication date
Nov 25, 2021
NEDERLANDSE ORGANISATIE VOOR TOEGEPAST- NATUURWETENSCHAPPELIJK ONDERZOEK TNO
Stan Anton Willem KLERKS
H01 - BASIC ELECTRIC ELEMENTS
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Patent Application
PHOTOVOLTAIC ROADWAY ASSEMBLY
Publication number
20200287502
Publication date
Sep 10, 2020
NEDERLANDSE ORGANISATIE VOOR TOEGEPAST- NATUURWETENSCHAPPELIJK ONDERZOEK TNO
Karl Everhardus SEWALT
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Sealing plug for sealing hollow flotation elements for use in a cov...
Publication number
20060230512
Publication date
Oct 19, 2006
Kees R. Kooijmans
E04 - BUILDING