| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 37 | |
| #2 | Canada | 7 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Machines | |
| #3 | Transport | |
| #4 | Mechanical elements | |
| #5 | Electrical machinery and energy | |
| #6 | Chemical engineering | |
| #7 | Packaging and shipping | |
| #8 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Domestic washing | |
| #2 | Unspecified technologies | |
| #3 | Vehicle wheels | |
| #4 | Unspecified technologies | |
| #5 | Shafts | |
| #6 | Nails | |
| #7 | Cleaning | |
| #8 | Containers for goods storage | |
| #9 | Non-positive-displacement pumps | |
| #10 | Electric switches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Serva Adam A | 12 |
| #2 | Goughnour Charles L | 7 |
| #3 | Simpson Walter S | 6 |
| #4 | Tideman William J | 4 |
| #5 | Dillon Charles A | 4 |
| #6 | Spielman Milton H | 3 |
| #7 | Friend David H | 3 |
| #8 | Paulus George R | 2 |
| #9 | Tldeman William J | 1 |
| #10 | Harrold Harmon H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1720153A | Vacuum-cleaner brush | |
| US1685299A | Vacuum-cleaner attachment | |
| US1585269A | Floor polisher | |
| US1600070A | Brush attachment for floor polishers | |
| US1708282A | Attachment for vacuum cleaners | |
| US1673920A | Attachment for vacuum cleaners | |
| US1601045A | Dust collector | |
| US1601044A | Suction cleaner | |
| US1611684A | Rotary drive for vacuum cleaners | |
| US1632512A | Pulley | |
| US1672001A | Dust collector | |
| US1482946A | Caster | |
| US1686934A | Brush and handle for vacuum cleaners | |
| US1513643A | Adjustable swivel caster | |
| US1482953A | Adjustable caster | |
| US1482956A | Adjustable caster | |
| US1482954A | Adjustable caster | |
| US1482955A | Adjustable caster | |
| US1708242A | Suction cleaner | |
| US1516359A | Pool-cleaning tool |