| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 8 | |
| #2 | United States | 8 | |
| #3 | Austria | 1 | |
| #4 | Germany | 1 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Textiles and paper | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Upholstering equipment | |
| #2 | Sewing | |
| #3 | Special textiles | |
| #4 | Unspecified technologies | |
| #5 | Mechanical carpet cleaning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Droll Joseph W | 14 |
| #2 | Olson Alex H | 6 |
| #3 | William Droll Joseph | 1 |
| #4 | Kibitz Harold A Jr | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB649416A | Machine for filling mattress casings and the like | |
| US2110359A | Mattress filling machine | |
| US2163780A | Mattress tufting machine | |
| US2089252A | Mattress tufting machine | |
| US1812412A | Machine for handling fibrous material | |
| US1683658A | Mattress-beating machine | |
| US1503352A | Mattress-beating machine | |
| US1511403A | Driving mechanism for mattress-stitching machines | |
| US1519299A | Stitching mechanism for mattress-roll-forming machines | |
| CA428992A | Mattress stapling machine | |
| CA479257A | Machines for filling mattress casings and the like | |
| CA376222A | Mattress-filling machine | |
| CA219763A | Mattress sewing machine | |
| CA219762A | Mattress sewing machine | |
| CA219761A | Variable speed mechanism | |
| CA334696A | Mattress tufting device | |
| CA219764A | Mattress sewing machine |