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Patent applications and USPTO patent grants for De Graaf; Pieter Marcel.The latest application filed is for "wall element for a partition wall, and partition wall".
Patent | Date |
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Wall element for a partition wall, and partition wall Grant 11,053,678 - Menzo , et al. July 6, 2 | 2021-07-06 |
Wall Element for a Partition Wall, and Partition Wall App 20200378112 - Menzo; Willem Anne Theodoor ;   et al. | 2020-12-03 |
Partition Wall App 20200123766 - De Graaf; Pieter Marcel ;   et al. | 2020-04-23 |
Door for a Partition Wall, and Partition Wall App 20200048900 - Menzo; Willem Anne Theodoor ;   et al. | 2020-02-13 |
Partition wall system with clamping profile Grant 9,879,420 - Joseph , et al. January 30, 2 | 2018-01-30 |
Partition wall system including clamping of the panels Grant 9,506,246 - Joseph , et al. November 29, 2 | 2016-11-29 |
Partition Wall System Including Clamping of the Panels App 20150376900 - Joseph; Johannes ;   et al. | 2015-12-31 |
Partition Wall System with Clamping Profile App 20150376899 - Joseph; Johannes ;   et al. | 2015-12-31 |
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