Inventor
Terrance L. Stephens
Inventor
Molalla, OR, US
Overview
Patents· 42 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Jprimary
B41JTypewriters63%
Y10TTechnical subjects covered by former us classification25%
B23KSoldering or unsoldering4%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form3%
G02BOptical elements, systems or apparatus3%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry1%
PatentTitleYear
10,214,023Fluid design for recirculation within high packing density inkjet print heads201910,118,390Single jet recirculation in an inkjet print head20189,956,785Pressure spike eliminator for print heads20189,694,582'Single jet recirculation in an inkjet print head'20179,457,560'Method of sensing degradation of piezoelectric actuators'20169,415,594'Single jet having a bubble screen'20169,381,737'Method of manufacturing a print head'20169,242,462'Single jet fluidic design for high packing density in inkjet print heads'20169,205,651'Subtractive three dimensional fabrication of an inkjet plate'20159,162,456'Process of manufacturing fluid dispensing subassembly with polymer layer'20159,061,511'Trap configured to collect ink particle contaminants in response to a cleaning flow'20159,039,141'Fluidic structure that allows removal of air bubbles from print heads without generating waste ink'20159,016,816'System and method for per drop electrical signal waveform modulation for ink drop placement in inkjet printing'20158,979,242'Trap configured to collect ink particle contaminants in response to a cleaning flow'20158,702,216'Polymer internal contamination filter for ink jet printhead'20148,662,641'Method for laser drilling fluid ports in multiple layers'20148,628,173'Electrical interconnect using embossed contacts on a flex circuit'20148,603,284'Fluid dispensing subassembly with compliant film'20138,596,756'Offset inlets for multicolor printheads'20138,544,996'Rock screen with particle trap'20138,540,346'Patterned metallization on polyimide aperture plate for laser-ablated nozzel'20138,439,486'Method for assembling a printhead having an inkjet ejector with a polymer aperture plate attached to an outlet plate'20138,403,440'Driving waveform for drop mass and position'20138,397,359'Method of manufacturing a drop generator'20138,360,557'Method for laser drilling fluid ports in multiple layers'20138,240,818'Inkjet ejector having a polymer aperture plate attached to an outlet plate and method for assembling an inkjet ejector'20128,205,970'Print head having a polymer aperture plate and method for assembling a print head'20128,197,031'Fluid dispensing subassembly with polymer layer'20128,177,339'Fluid reservoir with compliant wall'20128,177,338'High frequency mechanically actuated inkjet'20128,047,634'Injet jet stack external manifold'20118,006,356'Method of forming an array of drop generators'20117,934,815'External fluid manifold with polymer compliant wall'20117,891,798'Micro-fluidic device having an improved filter layer and method for assembling a micro-fluidic device'20117,857,432'Drop generator'20107,766,447'Banding adjustment method for multiple printheads'20107,766,463'Fluid dispensing subassembly with compliant film'20107,748,830'Printhead reservoir with filter external to jet fluid path'20107,600,863'Inkjet jet stack external manifold'20097,585,044'Method for normalizing a printhead assembly'20097,530,675'Piezoelectric actuator device'20096,260,963'Ink jet print head with damping feature'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2019Patents assigned to XEROX CORP (40)· patent assignee history
2001Based in Wilsonville, OR, US· patent location history
2009–2015Based in Molalla, OR, US· patent location history
2012–2015Patents assigned to ANDREWS JOHN R (14)· patent assignee history
2012–2015Patents assigned to STEPHENS TERRANCE L (11)· patent assignee history
2012–2015Patents assigned to STEPHENS TERRANCE LEE (6)· patent assignee history
2015–2016Patents assigned to PALO ALTO RES CT INC (3)· patent assignee history
2015–2019Based in Canby, OR, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| XEROX CORP | 40 | 2001–2019 |
| ANDREWS JOHN R | 14 | 2012–2015 |
| STEPHENS TERRANCE Lself | 11 | 2012–2015 |
| STEPHENS TERRANCE LEEself | 6 | 2012–2015 |
| PALO ALTO RES CT INC | 3 | 2015–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Molalla, OR, US | 29 | 2009–2015 |
| Canby, OR, US | 12 | 2015–2019 |
| Wilsonville, OR, US | 1 | 2001 |