Inventor
David J. Benson
Inventor
Albany, OR, US
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Jprimary
B41JTypewriters69%
E21BEarth or rock drilling6%
F16JPistons6%
G06TImage data processing or generation, in general6%
G09GArrangements or circuits for control of indicating devices using static means to present variable information6%
H04NPictorial communication, e.g. television6%
PatentTitleYear
10,900,316Wellhead seal with pressure energizing from below20217,717,540'Clog detection and clearing method for ink delivery system'20107,344,233'Replaceable ink supply with ink channels'20087,178,907'Fluid containment structure with coiled bag backpressure regulator'20077,111,930'Fluid supply having a fluid absorbing material'20067,097,289'Ink delivery apparatus with pressure tuned rolling piston and method of use'20067,033,010'Ink delivery apparatus with collapsible ink chamber and method of use'20067,029,102'Ink delivery regulation apparatus and method of use'20066,981,763'Back-pressure generating fluid containment structure and method'20066,969,163'Ink-reservoir vents and venting methods'20056,739,708'Fluid interconnect port venting for capillary reservoir fluid containers, and methods'20046,655,792'Geometric features to minimize free ink in an ink supply fluid interconnect'20034,874,992'Closed loop adaptive raster deflection signal generator'19894,716,460'Display refresh memory apparatus utilizing one half frame updating'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to SPERRY CORP (1)· patent assignee history
1987Based in Pijeras, NM, US· patent location history
1989Patents assigned to HONEYWELL INC (1)· patent assignee history
1989Based in Newington, CT, US· patent location history
2003–2010Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (11)· patent assignee history
2003–2010Based in Albany, OR, US· patent location history
2021Patents assigned to VETCO GRAY INC (1)· patent assignee history
2021Based in Houston, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HEWLETT PACKARD DEVELOPMENT CO | 11 | 2003–2010 |
| HONEYWELL INC | 1 | 1989 |
| SPERRY CORP | 1 | 1987 |
| VETCO GRAY INC | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Albany, OR, US | 11 | 2003–2010 |
| Houston, Texas, US | 1 | 2021 |
| Newington, CT, US | 1 | 1989 |
| Pijeras, NM, US | 1 | 1987 |