Inventor
Rudolph F. Janis
Inventor
Richmond, VA, US
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
D01Fprimary
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons29%
D04HMaking textile fabrics, e.g. from fibres or filamentary material29%
Y10TTechnical subjects covered by former us classification29%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons14%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999Patents assigned to DU PONT (3)· patent assignee history
1999Based in Richmond, VA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DU PONT | 3 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Richmond, Virginia, US | 3 | 1999 |