Inventor
Ralph R. Doyle
Inventor
Arlington Heights, IL, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B24Bprimary
B24BMachines, devices, or processes for grinding or polishing54%
B05BSpraying apparatus8%
B23DPlaning8%
G01MTesting static or dynamic balance of machines or structures8%
G01NInvestigating or analysing materials by determining their chemical or physical properties8%
G02BOptical elements, systems or apparatus8%
H05KPrinted circuits8%
PatentTitleYear
7,275,446'Apparatus for measuring the crushing strength of micron superabrasives'20076,602,108'Modular controlled platen preparation system and method'20036,585,559'Modular controlled platen preparation system and method'20034,827,672'Abrasive cutting wheel system'19894,693,035'Multiple optical fiber polishing apparatus'19874,678,119'Abrasive slurry supply system for use in metallographic sample preparation'19874,671,629'Microscope for examining the surface finish of fiber optic ends'19874,587,768'Apparatus and method for polishing ends of fiber optics'19864,513,894'Abrasive slurry supply system for use in metallographic sample preparation'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–1989Patents assigned to BUEHLER LTD (6)· patent assignee history
1985–1987Based in Des Plaines, IL, US· patent location history
1986–1989Based in Arlington Heights, IL, US· patent location history
2003–2007Patents assigned to ENGIS CORP (3)· patent assignee history
2003–2007Based in Palatine, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BUEHLER LTD | 6 | 1985–1989 |
| ENGIS CORP | 3 | 2003–2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Arlington Heights, Illinois, US | 4 | 1986–1989 |
| Palatine, Illinois, US | 3 | 2003–2007 |
| Des Plaines, Illinois, US | 2 | 1985–1987 |