| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 43 | |
| #2 | Canada | 6 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Furniture and games | |
| #4 | Measurement | |
| #5 | Packaging and shipping | |
| #6 | Mechanical elements | |
| #7 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Doors and windows | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Finishing work on buildings | |
| #5 | Measuring distances | |
| #6 | Handling thin material | |
| #7 | Producing decorative effects | |
| #8 | Chairs and beds | |
| #9 | Nails | |
| #10 | Household appliances |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hartshorn Edmund F | 25 |
| #2 | Stewart Hartshorn | 6 |
| #3 | Hartshorn Edmund Fisher | 3 |
| #4 | Hartshorn Stewart | 3 |
| #5 | Watts Harry W | 2 |
| #6 | Hartshorn Stewart H | 2 |
| #7 | Mayer Jr Joseph T | 1 |
| #8 | Temple Ansel F | 1 |
| #9 | Anthony Morpeth | 1 |
| #10 | Morpeth Anthony | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2570140A | Head assembly for spring shade rollers | |
| US2427298A | Shade roller | |
| US1942787A | Shade roller | |
| US1886674A | Shade fixture | |
| US1830223A | Shade roller locking extension | |
| US1798259A | Shade roller and fastener | |
| US1756591A | Sheet-metal curtain roller | |
| US1725269A | Shade roller | |
| US1725270A | Shade roller | |
| US1573492A | Shade roller | |
| US1527408A | Shade roller | |
| US1572651A | Shade roller | |
| US1515040A | Shade fastening | |
| US1202288A | Shade-roller. | |
| US1202287A | Shade-roller. | |
| US1202285A | Shade-roller. | |
| US1202284A | Shade-roller. | |
| US1202286A | Shade-roller. | |
| US1081042A | Awning. | |
| US1059990A | Clip for securing shades to rollers. |