| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 13 | |
| #2 | United States | 4 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | Australia | 1 | |
| #5 | Canada | 1 | |
| #6 | Denmark | 1 | |
| #7 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Electrical machinery and energy | |
| #4 | Machine tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bridgstock Eric | 14 |
| #2 | Kenworthy David Michael Anthon | 10 |
| #3 | Glaves Brian | 8 |
| #4 | Kenworthy David M A | 5 |
| #5 | Bilton David Alan | 4 |
| #6 | Bilton David A | 3 |
| #7 | Dunkey Edwin Albert Walter | 2 |
| #8 | Bilton David Allan | 1 |
| #9 | Brettell David | 1 |
| #10 | Dunkey Edwin A W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5228186A | Method of manufacturing electro-fusion fittings | |
| GB8910070D0 | Electro-fusion fittings | |
| US4795877A | Fault detecting device for welded pipe joints | |
| GB8618285D0 | Electroweldable sockets | |
| GB8609271D0 | Branch pipe fitting for thermoplastic pipe | |
| GB8502440D0 | Clamping device | |
| GB8502439D0 | Thermoplastic pipe | |
| GB8406503D0 | Pipe joints | |
| GB8325026D0 | Pipe joints | |
| GB8308800D0 | Branch pipe fitting | |
| GB8308799D0 | Branch pipe fitting for thermoplastic pipe | |
| GB8308801D0 | Branch pipe fitting | |
| GB8308117D0 | Coupling electrofusion fitting to energy source and control equipment | |
| ZA8207746B | Electro-fusion fitting | |
| EP0076043A2 | Electro-fusion fitting |