| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 4 | |
| #3 | Japan | 4 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Roof coverings | |
| #2 | Unspecified technologies | |
| #3 | Belts or cables for driving | |
| #4 | Doors and windows | |
| #5 | Wing fittings | |
| #6 | Indexing scheme relating to hinges | |
| #7 | Making metal chains | |
| #8 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bechtold Stephen K | 9 |
| #2 | Sutefuan Kei Behitorudo | 4 |
| #3 | Bechtold Alec W | 2 |
| #4 | Bechtold Stephen K Soundview A | 2 |
| #5 | Aretsuku Daburiyuu Behitorudo | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4941316A | Chain assembly | |
| US4827668A | Chain operator for a window | |
| US4878345A | Chain assembly and method for making the same | |
| US4750302A | Insulated glass skylight assembly | |
| US4762160A | Skylight shade assembly | |
| US4441284A | Double dome skylight assembly | |
| US4408422A | Skylight dome assembly |