Inventor
Ralph L. Stathem
Inventor
Lebanon, OR, US
Overview
Patents· 55 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Jprimary
B41JTypewriters68%
Y10TTechnical subjects covered by former us classification17%
LOC1810%
B41LApparatus or devices for manifolding, duplicating or printing for office or other commercial purposes3%
B05BSpraying apparatus1%
F16KValves1%
PatentTitleYear
D0875828Ink cartridge202010,391,775Fluid cartridge201910,112,400Fluid cartridge201810,046,564Print head module20189,770,914'Fluid cartridge'20179,738,080'Fluid cartridge'20179,616,670'Fluid cartridge'20179,597,887'Pen housings'20179,457,368'Fluidic devices, bubble generators and fluid control methods'20169,321,275'Valve systems for managing air in a fluid ejection system'20169,238,374'Print head module'20169,132,649'Removable guide element'20159,126,411'Fluid-jet precision-dispensing device having one or more holes for passing gaseous bubbles, sludge, and/or contaminants during priming'20159,090,082'Fluid container having plurality of chambers'20159,056,479'Pressure bag'20159,028,054'Fluid cartridge'2015D0729312'Ink cartridge'20158,979,251'Fluid cartridge'20158,919,935'Liquid supply'20148,882,252'Fluid cartridge'20148,864,296'System for priming a fluid dispenser by expanding gas bubbles'2014D0712464'Ink cartridge'2014D0707290'Ink cartridge'20148,727,516'Fluid cartridge'20148,651,642'Fluid cartridge'20148,651,643'Fluid cartridge'2014D0699785'Ink cartridge'20148,517,510'Fluid dispensing apparatus and method thereof'20138,474,960'Fluid cartridge'2013D0680582'Ink cartridge'20138,388,107'Latch for a liquid dispenser'2013D0675252'Ink cartridge'20138,066,358'Over-molded fluid interconnect'20117,997,698'Ink delivery system and methods for improved printing'20117,950,791'Ink level detection by electronic means'20117,862,161'Ink detector viewable with the human eye'20117,771,033'Printing device'20107,762,651'Printing device fluid reservoir'20107,673,968'Printing device locking mechanism for consumable enclosures'20107,618,135'Inkjet printing system with push priming'20097,556,365'Inkjet printing system with compliant printhead assembly'20097,510,274'Ink delivery system and methods for improved printing'20097,500,737'Free flow fluid delivery system for printing device'20097,490,925'Free flow fluid delivery system for printing device'20096,908,181'Redundant fluid interconnect seal for a modular ink jet delivery system'20056,837,573'Interconnect circuit'20056,705,706'Arrangements of interconnect circuit and fluid drop generators'20046,673,160'Method of cleaning for an inkjet printer'20046,652,072'Interconnect circuit'20036,648,457'Redundant fluid interconnect seal for a modular ink jet delivery system'20036,648,458'Pinch seal providing fluid interconnects between fluid delivery system components'20036,604,814'Arrangements of interconnect circuit and fluid drop generators'20036,454,388'Sequestering residual ink on an ink-jet print cartridge'20026,139,137'Bottom fill inkjet cartridge through bubble generator'20005,933,175'Bottom fill inkjet cartridge through bubble generator'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2020Based in Lebanon, OR, US· patent location history
2003–2020Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (47)· patent assignee history
2004Based in Vancouver, WA, US· patent location history
2009–2015Based in Corvallis, OR, US· patent location history
2011–2020Patents assigned to STATHEM RALPH L (16)· patent assignee history
2013–2020Patents assigned to OLSEN DAVID (12)· patent assignee history
2013–2020Patents assigned to HARVEY DAVID C (8)· patent assignee history
2016–2017Patents assigned to HEWLETT PACKARD DEVELOPMENT CO LP (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HEWLETT PACKARD DEVELOPMENT CO | 47 | 2003–2020 |
| STATHEM RALPH Lself | 16 | 2011–2020 |
| OLSEN DAVID | 12 | 2013–2020 |
| HARVEY DAVID C | 8 | 2013–2020 |
| HEWLETT PACKARD DEVELOPMENT CO LP | 5 | 2016–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lebanon, OR, US | 46 | 1999–2020 |
| Corvallis, OR, US | 8 | 2009–2015 |
| Vancouver, Washington, US | 1 | 2004 |