| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 8 | |
| #2 | United States | 7 | |
| #3 | Spain | 4 | |
| #4 | Sweden | 4 | |
| #5 | Denmark | 3 | |
| #6 | France | 3 | |
| #7 | United Kingdom | 3 | |
| #8 | Netherlands | 3 | |
| #9 | Austria | 2 | |
| #10 | Australia | 2 | |
| #11 | Brazil | 2 | |
| #12 | Switzerland | 2 | |
| #13 | Germany | 2 | |
| #14 | Italy | 2 | |
| #15 | Norway | 2 | |
| #16 | South Africa | 2 | |
| #17 | Argentina | 1 | |
| #18 | Belgium | 1 | |
| #19 | Luxembourg | 1 | |
| #20 | New Zealand | 1 | |
| #21 | Philippines | 1 | |
| #22 | Portugal | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Chemical engineering | |
| #3 | Transport | |
| #4 | Mechanical elements | |
| #5 | Control | |
| #6 | Agriculture | |
| #7 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Spraying devices | |
| #2 | Cleaning | |
| #3 | Vehicle servicing | |
| #4 | Unspecified technologies | |
| #5 | Venting or aerating devices | |
| #6 | Mixing | |
| #7 | Systems controlling non-electric variables | |
| #8 | Animal catching | |
| #9 | Domestic washing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Norstrud Iven R | 20 |
| #2 | Threlkeld John H | 15 |
| #3 | Norstrud I | 7 |
| #4 | Norstrud I R | 7 |
| #5 | Anderson Donald R | 6 |
| #6 | Hockmuth Gerald L | 6 |
| #7 | Threlkeld J H | 4 |
| #8 | Anderson D R | 4 |
| #9 | Anderson Donald Ross | 3 |
| #10 | Threlkeld D | 3 |
| Publication | Filing date | Title |
|---|---|---|
| NZ198725A | Portable rotating disc sprayer | |
| US4408720A | Demountable wheeled liquid sprayer | |
| US3893591A | High pressure spray washing system | |
| US3383044A | Hydraulically controlled pressure washer | |
| US3446238A | Pressure actuated valve | |
| US3139238A | Cleaning apparatus with multiple and variable water supply | |
| US3195556A | Pressure relief valve for controlling pump | |
| US3140049A | Cleaning apparatus with relief control valve | |
| CA736349A | Cleaning apparatus with relief control valve | |
| CA724067A | Cleaning apparatus with multiple and variable water supply | |
| CA804498A | Cleaning and waxing composition for automobile finishes | |
| CA731428A | Control valve | |
| CA792637A | Bright dry no rubbing auto wax composition | |
| CA799232A | Hydraulically controlled pressure washer |