| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering | |
| #3 | Furniture and games | |
| #4 | Transport | |
| #5 | Environmental technology | |
| #6 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Locks | |
| #3 | Bowling games | |
| #4 | Furniture for children | |
| #5 | Climate change mitigation in transportation | |
| #6 | Aeroplanes | |
| #7 | Marine propulsion | |
| #8 | Buttons, pins and buckles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schroeder Frederick W | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US2675860A | Folding high chair | |
| US1086090A | Clamping device for belts. | |
| US959266A | Aerial ship. | |
| US955214A | Propulsion of vessels. | |
| US844412A | Padlock. | |
| US824593A | Padlock. | |
| US835736A | Billiard-cue tip. | |
| US840716A | Apparatus for shaping the ends of billiard-cues. | |
| US838910A | Key for locks. | |
| US838360A | Lock. | |
| CA9449A | Improvements in car trucks | |
| CA9442A | Improvement in railway cushions |