Inventor
Christopher J. Stvartak
Inventor
Skokie, IL, US
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A46Bprimary
A46BBrushes16%
A61CDentistry12%
B29LIndexing scheme associated with subclass b29c, relating to particular articles8%
LOC248%
LOC288%
A46DManufacture of brushes4%
B05DProcesses for applying fluent materials to surfaces, in general4%
B29CShaping or joining of plastics4%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts4%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form4%
PatentTitleYear
10,377,069Injection molded window and method20199,664,324'Containment pipe fittings and methods'2017D0595424'Cryogenic sample vial lid'2009D0544703'Carrier for laboratory and clinical accessories'2007D0529622'Cryogenic storage box'20066,601,272'Dental hygiene system handle'20036,496,999'Toothbrush with bristle configuration adapted for cleaning tooth surfaces and interproximal areas'20026,446,640'Dental hygiene device with easily mounted and identified dental hygiene element'2002D0459086'Toothbrush handle'2002D0441504'Dental floss case'2001D0441143'Dental floss case'20015,934,295'Dental hygiene system'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2003Patents assigned to BUTLER JOHN O CO (7)· patent assignee history
1999–2009Based in Skokie, IL, US· patent location history
2002Based in Chicago, IL, US· patent location history
2006–2009Patents assigned to HEATHROW SCIENT LLC (3)· patent assignee history
2017Patents assigned to GEORG FISCHER LLC (1)· patent assignee history
2017Patents assigned to MASTRO PAUL F (1)· patent assignee history
2017Based in Charleston, IL, US· patent location history
2019Patents assigned to DURA OPERATING LLC (1)· patent assignee history
2019Based in Waterford, MI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BUTLER JOHN O CO | 7 | 1999–2003 |
| HEATHROW SCIENT LLC | 3 | 2006–2009 |
| DURA OPERATING LLC | 1 | 2019 |
| GEORG FISCHER LLC | 1 | 2017 |
| MASTRO PAUL F | 1 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Skokie, Illinois, US | 9 | 1999–2009 |
| Waterford, MI, US | 1 | 2019 |
| Charleston, Illinois, US | 1 | 2017 |
| Chicago, Illinois, US | 1 | 2002 |