| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 27 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Packaging and shipping | |
| #3 | Mechanical elements | |
| #4 | Machines | |
| #5 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Cleaning | |
| #2 | Unspecified technologies | |
| #3 | Transport or storage devices | |
| #4 | Venting or aerating devices | |
| #5 | Belts or cables for driving | |
| #6 | Dairy products production | |
| #7 | Cleaning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Paulson Walter H | 17 |
| #2 | Mcewan Charles F | 12 |
| #3 | Paulson Walter P | 1 |
| #4 | Clifford John J | 1 |
| #5 | Edward Hageline Emil | 1 |
| #6 | Emil Hageline | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1939315A | Conveyer apparatus | |
| US1918537A | Conveying mechanism | |
| US1862485A | Rotary conveyer | |
| US1956298A | Chain | |
| US1861642A | Chain | |
| US1884052A | Can washing machine | |
| US1908526A | Can washing machine | |
| US1932593A | Can washing machine | |
| US1846564A | Can washing machine | |
| US1903193A | Milk dumping device | |
| US1845336A | Milk handling device | |
| US1844593A | Valve operating device | |
| US1743135A | Milk-can variable feeding mechanism | |
| US1939308A | Rotary can washing machine | |
| US1756522A | Can-ejecting mechanism | |
| US1642824A | Bottle-washing machine | |
| US1649073A | Can conveying, inverting, and discharging mechanism | |
| US1600416A | Milk-can dumper | |
| US1578451A | Can-delivering mechanism | |
| US1454124A | Can-washing machine |