Inventor
Richard R Hartman
Inventor
Memphis, TN, US
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Mprimary
B41MPrinting, duplicating, marking, or copying processes30%
D21HPulp compositions30%
C09DCoating compositions, e.g. paints, varnishes or lacquers20%
B41JTypewriters10%
Y10TTechnical subjects covered by former us classification10%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2009–2012Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (2)· patent assignee history
2009–2014Based in Memphis, TN, US· patent location history
2012–2014Patents assigned to KOENIG MICHAEL F (2)· patent assignee history
2012–2014Patents assigned to SPERRY WILLIAM R (2)· patent assignee history
2012–2014Patents assigned to YANG SEN (2)· patent assignee history
2014Patents assigned to ASKELAND RONALD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HEWLETT PACKARD DEVELOPMENT CO | 2 | 2009–2012 |
| KOENIG MICHAEL F | 2 | 2012–2014 |
| SPERRY WILLIAM R | 2 | 2012–2014 |
| YANG SEN | 2 | 2012–2014 |
| ASKELAND RONALD | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Memphis, TN, US | 3 | 2009–2014 |