| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 43 | |
| #2 | Canada | 7 | |
| #3 | United Kingdom | 3 | |
| #4 | Austria | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Machine tools | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Unspecified technologies | |
| #3 | Percussive tools | |
| #4 | Servomotors | |
| #5 | Rotary-pistons | |
| #6 | Venting or aerating devices | |
| #7 | Frames | |
| #8 | Lubricating | |
| #9 | Mining | |
| #10 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Prellwitz William | 20 |
| #2 | Gibson Arthur H | 7 |
| #3 | Sergeant Henry C | 7 |
| #4 | Taylor Albert H | 4 |
| #5 | Sergeant Henry Clark | 3 |
| #6 | Gibson Arthur Henry | 3 |
| #7 | Haeseler Charles H | 2 |
| #8 | Raymond Ward | 1 |
| #9 | Cooper John | 1 |
| #10 | Prettwitz William | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US841141A | Pressor. | |
| US818681A | Rock-drill. | |
| US810621A | Automatic oiler. | |
| US841140A | Pressor. | |
| US820684A | Reversng mechanism for rotary motors. | |
| US819470A | Reversing mechanism for rotary motors. | |
| US841139A | Rock-drill. | |
| US810686A | Automatic oiler. | |
| US810890A | Reversing mechanism for rotary motors. | |
| US810639A | Rock-drill. | |
| CA94774A | Channelling machine | |
| CA94775A | Channelling machine | |
| US805198A | Air-presser. | |
| US805197A | Air-presser. | |
| US845406A | Electrically-driven fluid-pressor. | |
| US805196A | Fluid-presser. | |
| US805195A | Electropneumatic channeler. | |
| US810672A | Discharge-valve for fluid-compressors. | |
| US833938A | Channeling-machine. | |
| US898135A | Valve-operating device for compressors. |