Ronald L Sitzema
Inventor
Stats
- 6 US patents issued
- 6 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 6 US Patents Issued
- 6 US Applications Filed
- 408 Total Citation Count
- Jul 31, 1996 Most Recent Filing
- Jan 30, 1989 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| DAKTRONICS, INC. | 1
| 1991
|
| Minnesota Mining and Manufacturing Company | 1
| 1994
|
| ALP LIGHTING & CEILING PRODUCTS, INC. | 1
1 | 1994
1996 |
| INTERMATIC INCORPORATED | 2
| 1989
|
| J. BAXTER BRINKMANN INTERNATIONAL CORPORATION | 1
| 1991
|
Inventor Addresses
| Address | Duration |
|---|---|
| Charlevoix, MI | Jun 14, 94 - Jun 14, 94 |
| Ellsworth, MI | Nov 06, 90 - Apr 28, 98 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| F21S: | NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF | 1 |
| F21V: | FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR | 4 |
| G09G: | ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION | 1 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 5743634 | 1998 | Perforated reflector for an ornamental luminaire | 13 |
| 5481445 | 1996 | Transflection reflector having controlled reflected and transmitted light distribution | 58 |
| 5321417 | 1994 | Visual display panel | 46 |
| 5249109 | 1993 | Outdoor variable focus light fixture | 49 |
| 5086379 | 1992 | Low voltage outdoor floodlight having adjustable beam pattern, ball and socket mounting, and novel cable handling | 157 |
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