| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 4 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Japan | 2 | |
| #5 | Germany | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Republic of Korea | 1 | |
| #8 | Mexico | 1 | |
| #9 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chronister Clyde H | 12 |
| #2 | Chronister Clyde Hubert | 5 |
| #3 | Kuraido Hiyuubaato Kuronisutaa | 2 |
| #4 | H Chronister Clyde | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA2262195A1 | Internal tank car valve with safety lock | |
| US5193573A | Ball valve having replaceable seals under full service pressure | |
| US5209456A | Tank valve | |
| US5170988A | Internal tank valve | |
| US5170819A | Valve system for mobile tank cars | |
| US5145151A | Internal tank valve with valve lock | |
| CA2024898C | Internal tank valve | |
| US4512360A | Fabricated ball valve | |
| US4145026A | Valve with self-actuating fluid seal | |
| GB1283658A | Valve |