Inventor
Nicolai Czumaj-Bront
Inventor
Grand Rapids, MI, US
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
LOC06primary
LOC0685%
A47CChairs10%
A47BTables5%
PatentTitleYear
9,986,837Chair assembly with extended surface20189,913,539'Office chair'2018D0793787'Portion of a back support for a chair'2017D0784749'Lumbar support for a chair'2017D0782859'Back support for a chair'2017D0782241'Back support for a chair'2017D0779252'Back support for a chair'2017D0779253'Back support for a chair'2017D0779255'Headrest for a chair'2017D0779250'Portion of a back support for a chair'2017D0779248'Armrests for a chair'2017D0779254'Armrests for a chair'2017D0724877'Chair with work surface'2015D0718542'Chair with work surface'2014D0666841'Office chair'2012D0662331'Office chair'2012D0655522'Office chair'2012D0643640'Office chair'2011D0618004'Office chair'2010Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2010–2018Patents assigned to HAWORTH INC (19)· patent assignee history
2010–2017Based in Grand Rapids, MI, US· patent location history
2012Patents assigned to CZUMAJ-BRONT NICOLAI (3)· patent assignee history
2012Patents assigned to WELSH MICHAEL W (3)· patent assignee history
2018Based in Berlin, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HAWORTH INC | 19 | 2010–2018 |
| CZUMAJ-BRONT NICOLAIself | 3 | 2012 |
| WELSH MICHAEL W | 3 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Grand Rapids, MI, US | 17 | 2010–2017 |
| Berlin, DE | 2 | 2018 |