| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 3 | |
| #2 | South Africa | 2 | |
| #3 | Australia | 1 | |
| #4 | Belgium | 1 | |
| #5 | Brazil | 1 | |
| #6 | Canada | 1 | |
| #7 | Germany | 1 | |
| #8 | Denmark | 1 | |
| #9 | Spain | 1 | |
| #10 | France | 1 | |
| #11 | Ireland | 1 | |
| #12 | Italy | 1 | |
| #13 | Japan | 1 | |
| #14 | Luxembourg | 1 | |
| #15 | Netherlands | 1 | |
| #16 | Norway | 1 | |
| #17 | Sweden | 1 | |
| #18 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Webb John Wanless Mcnaughton | 3 |
| #2 | Webb J | 2 |
| #3 | Webb J W M | 1 |
| #4 | Mcnaughton Webp J | 1 |
| #5 | Fretwell Kevin | 1 |
| #6 | Jiyon Uonresu Makunooton Uebu | 1 |
| #7 | Webb John | 1 |
| #8 | Webb John W M | 1 |
| #9 | Mcnaughton Wanless | 1 |
| #10 | Webb J W N | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6769450B2 | Valve system | |
| GB9822672D0 | Gate valve | |
| GB1581004A | Valve assembly | |
| IE780613L | Butterfly valve | |
| GB1576020A | Butterfly valve |