| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | Austria | 2 | |
| #3 | Belgium | 2 | |
| #4 | Canada | 2 | |
| #5 | Switzerland | 2 | |
| #6 | Spain | 2 | |
| #7 | France | 2 | |
| #8 | United Kingdom | 2 | |
| #9 | Ireland | 2 | |
| #10 | Netherlands | 2 | |
| #11 | Norway | 2 | |
| #12 | Sweden | 2 | |
| #13 | United States | 2 | |
| #14 | South Africa | 2 | |
| #15 | Australia | 1 | |
| #16 | Italy | 1 | |
| #17 | Luxembourg | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Basic communication technologies |
| # | Technology | |
|---|---|---|
| #1 | Circuits for supplying electric power | |
| #2 | Pulse technique |
| # | Name | Total Patents |
|---|---|---|
| #1 | Clayton D A | 11 |
| #2 | Foster G W | 9 |
| #3 | Clayton Dennis Albert | 4 |
| #4 | Clayton D | 3 |
| #5 | Foster G | 3 |
| #6 | Albert Clayton Dennis | 2 |
| #7 | William Foster George | 1 |
| #8 | Foster George William | 1 |
| #9 | Foster George W | 1 |
| #10 | Clayton Dennis A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3746884A | Frequency halving circuits | |
| GB1210531A | Improvements relating to automatic battery charging systems | |
| GB886008A | Electro-magnetic relay circuits |