| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | United Kingdom | 4 | |
| #3 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Packaging and shipping | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Transport or storage devices | |
| #4 | Vehicle seats | |
| #5 | Lubricating |
| # | Name | Total Patents |
|---|---|---|
| #1 | Powell James | 13 |
| #2 | Jardine John | 2 |
| #3 | Mackenzie Thomas Brown | 2 |
| #4 | Colville David Jr | 1 |
| #5 | Truckenbrodt Gerd | 1 |
| #6 | Cahill Joe | 1 |
| #7 | Colville David | 1 |
| #8 | Cassidy Rick | 1 |
| #9 | Beal Jim | 1 |
| #10 | Almasian Steve | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US831468A | Globe-valve. | |
| US773589A | Safety-valve. | |
| US776422A | Lubricator. | |
| GB190215268A | Improvements in Globe-valves. | |
| CA75489A | Gate valve | |
| GB190110016A | Improvements in Gate-valves. | |
| US713145A | Globe-valve. | |
| GB190021466A | Improvements in Gate Valves | |
| US673925A | Gate-valve. | |
| US663515A | Gate-valve. | |
| US639090A | Apparatus for charging materials into open-hearth steel-melting furnaces. | |
| GB189809027A | Improvements in Apparatus for Charging Materials into Open-hearth Steel-melting Furnaces. |