Inventor
David K. Gibson
Inventor
Boulder, CO, US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography50%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations17%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables17%
C07DHeterocyclic compounds17%
PatentTitleYear
4,757,148'Intermediate 1-(2-nitro-1-imidazolyl)-3-substituted amino-2-propanols and the corresponding 2,3-butanediols'19884,631,289'Useful in radiotherapy of chemotherapy 4-aziridino-1-nitroimidazol-1-yl-2,3-butanediols'19864,519,700'Electronically gated paper aligner system'19854,488,801'Maximum throughput duplexing system for xerographic machines'19844,447,144'Grooved roller support for a belt xerographic photoconductor'19844,209,248'Continuously variable reduction copier optics systems'19804,120,578'Continuously variable reduction scanning optics drive'19784,105,327'Multiple reduction indicators for continuously variable reduction copier machines'19784,060,232'Controlled slip paper separator'19773,955,811'Paper stack height control in a multibin copier'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1985Patents assigned to IBM (8)· patent assignee history
1976–1985Based in Boulder, CO, US· patent location history
1986–1988Patents assigned to NAT RES DEV (2)· patent assignee history
1986–1988Based in London, GB· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 8 | 1976–1985 |
| NAT RES DEV | 2 | 1986–1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Boulder, CO, US | 8 | 1976–1985 |
| London, GB | 2 | 1986–1988 |