Inventor
Robert L. Rackley
Inventor
Parkersburg, WV, US
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification26%
A46DManufacture of brushes16%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons12%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons12%
A01KAnimal husbandry7%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form5%
A46BBrushes2%
A61CDentistry2%
B05DProcesses for applying fluent materials to surfaces, in general2%
B29CShaping or joining of plastics2%
PatentTitleYear
6,391,240'Process of making extruded brush monofilaments'20025,976,692'Natural bristle replacement for cosmetic and other brushes'19995,939,166'Moisture stable tuftstring carpet'19995,933,906'Monofilaments with split ends'19995,849,410'Coextruded monofilaments'19985,770,307'Coextruded monofilaments'19985,128,208'Flaggable synthetic tapered paintbrush bristles'19925,082,610'Process for surface treating thermoplastic monofilaments'19924,921,668'Process for flame treating'19904,867,679'Orthodontic ligature'19894,584,240'Coextruded monofilament fishline'19864,469,739'Oriented woven furniture support material'19844,279,053'Tri- or tetra-locular paint brush bristles'19814,251,588'Hollow monofilaments in paper-making belts'19813,962,502'Process for curing heat-curable coating'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–2002Patents assigned to DU PONT (15)· patent assignee history
1976Based in Newark, DE, US· patent location history
1981–2002Based in Parkersburg, WV, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DU PONT | 15 | 1976–2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Parkersburg, WV, US | 14 | 1981–2002 |
| Newark, Delaware, US | 1 | 1976 |