Inventor
John W. Irwin
Inventor
Georgetown, TX, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing31%
G09GArrangements or circuits for control of indicating devices using static means to present variable information27%
B41JTypewriters12%
F24FAir-conditioning8%
B01DSeparation4%
B41FPrinting machines or presses4%
E04BGeneral building constructions4%
F25BRefrigeration machines, plants or systems4%
H04LTransmission of digital information, e.g. telegraphic communication4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
PatentTitleYear
9,213,744'Perturbing search results'20155,321,806'Method and apparatus for transmitting graphics command in a computer graphics system'19945,321,810'Address method for computer graphics system'19945,315,696'Graphics command processing method in a computer graphics system'19945,315,698'Method and apparatus for varying command length in a computer graphics system'19945,008,816'Data processing system with multi-access memory'19914,859,815'Serial link transparent mode disparity control'19894,833,596'Logical arrangement for controlling use of different system displays by main processor and co-processor'19894,757,441'Logical arrangement for controlling use of different system displays by main proessor and coprocessor'19884,703,420'System for arbitrating use of I/O bus by co-processor and higher priority I/O units in which co-processor automatically request bus access in anticipation of need'19874,695,945'Processor I/O and interrupt filters allowing a co-processor to run software unknown to the main processor'19874,496,954'Reservo interval determination in an ink jet system'19854,469,026'Method and apparatus for controlling drying and detaching of printed material'19844,275,968'System for controlling and sequencing a printer'19814,218,856'Connector for sloped roof deck'19804,187,691'Heat pump bypass valve arrangement'19804,031,521'Multimode programmable machines'19774,000,779'Blowoff baffle'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1991Patents assigned to IBM (10)· patent assignee history
1977–1980Patents assigned to GEN ELECTRIC (2)· patent assignee history
1977–1980Based in Trenton, NJ, US· patent location history
1981–1984Based in Loveland, CO, US· patent location history
1985–1989Based in Georgetown, TX, US· patent location history
1989–1991Based in Austin, TX, US· patent location history
1994Patents assigned to DIGITAL EQUIPMENT CORP (4)· patent assignee history
1994Based in Hudson, NH, US· patent location history
2015Patents assigned to IFWE INC (1)· patent assignee history
2015Patents assigned to IRWIN JOHN (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 10 | 1977–1991 |
| DIGITAL EQUIPMENT CORP | 4 | 1994 |
| GEN ELECTRIC | 2 | 1977–1980 |
| IFWE INC | 1 | 2015 |
| IRWIN JOHNself | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Georgetown, Texas, US | 5 | 1985–1989 |
| Hudson, NH, US | 4 | 1994 |
| Austin, Texas, US | 2 | 1989–1991 |
| Loveland, CO, US | 2 | 1981–1984 |
| Trenton, New Jersey, US | 2 | 1977–1980 |