| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Chemical engineering | |
| #3 | Civil engineering | |
| #4 | Engines, pumps and turbines | |
| #5 | Machines | |
| #6 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Transport or storage devices | |
| #2 | Separating solids using liquids | |
| #3 | Dredging | |
| #4 | Unspecified technologies | |
| #5 | Siphons | |
| #6 | Feeding fuel to combustion device | |
| #7 | Steam generation | |
| #8 | Containers for goods storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Postlethwaite Robert H | 5 |
| #2 | Moore Robert S | 2 |
| #3 | Evans George Henry | 2 |
| #4 | Schierholz August H | 2 |
| #5 | Lang Herbert | 1 |
| #6 | O'Leary Edward J | 1 |
| #7 | Telford George | 1 |
| #8 | Postlethwaite Robert Hodgshon | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1006263A | Hand-hole cover. | |
| US795417A | Excavating-bucket. | |
| US717301A | Sluice or runway. | |
| US696078A | Auxiliary cutter for gold-dredgers. | |
| US697748A | Distributer for gold-separators. | |
| US692030A | Excavating mechanism for dredgers. | |
| US689421A | Sugar-cane loader. | |
| US683334A | Portable sugar-cane elevator or loader. | |
| US684449A | Trash-feeder for bagasse-furnaces. | |
| US655615A | Hydraulic elevator. | |
| US646640A | Air lift-pump. | |
| US634119A | Base chamber or seat for hydraulic elevators. | |
| CA62761A | Gold-saving apparatus | |
| US652900A | Gold-saving apparatus. | |
| CA53668A | Furnace |