Inventor
William N. Roberts
Inventor
Niles, IL, US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus17%
B25CHand-held nailing or stapling tools13%
H01JElectric discharge tubes or discharge lamps13%
B23KSoldering or unsoldering8%
F23DBurners8%
Y10TTechnical subjects covered by former us classification8%
B29CShaping or joining of plastics4%
B29DProducing particular articles from plastics or from substances in a plastic state4%
B29LIndexing scheme associated with subclass b29c, relating to particular articles4%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form4%
PatentTitleYear
6,796,478'Fuel cell adapter system for combustion tools'20046,685,193'Self lubricating, non-sealing piston ring for an internal combustion fastener driving tool'20046,626,344'Fuel cell adapter system for combustion tools'20035,060,114'Conformable pad with thermally conductive additive for heat dissipation'19915,023,507'Tension mask color cathode ray tube with improved color selection electrode support structure'19915,017,170'Brazing method for mounting a tension shadow mask'19914,710,820'Single layer optical coupler for projection TV CRT'19874,672,089'Retroreflective sheeting'19874,618,518'Retroreflective sheeting and methods for making same'19864,601,861'Methods and apparatus for embossing a precision optical pattern in a resinous sheet or laminate'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–1987Patents assigned to AMERACE CORP (3)· patent assignee history
1986–1991Based in Niles, IL, US· patent location history
1987–1991Patents assigned to ZENITH ELECTRONICS CORP (4)· patent assignee history
2003–2004Patents assigned to ILLINOIS TOOL WORKS (3)· patent assignee history
2003–2004Based in Grayslake, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ZENITH ELECTRONICS CORP | 4 | 1987–1991 |
| AMERACE CORP | 3 | 1986–1987 |
| ILLINOIS TOOL WORKS | 3 | 2003–2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Niles, Illinois, US | 7 | 1986–1991 |
| Grayslake, Illinois, US | 3 | 2003–2004 |