| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 5 | |
| #2 | United Kingdom | 4 | |
| #3 | Belgium | 3 | |
| #4 | Germany | 3 | |
| #5 | Denmark | 3 | |
| #6 | France | 3 | |
| #7 | Italy | 3 | |
| #8 | Japan | 3 | |
| #9 | Netherlands | 3 | |
| #10 | Egypt | 2 | |
| #11 | Spain | 2 | |
| #12 | Greece | 2 | |
| #13 | Ireland | 2 | |
| #14 | United States | 2 | |
| #15 | Austria | 1 | |
| #16 | Hong Kong | 1 | |
| #17 | Luxembourg | 1 | |
| #18 | Mexico | 1 | |
| #19 | Norway | 1 | |
| #20 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Machines | |
| #3 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Batteries | |
| #2 | Unspecified technologies | |
| #3 | Reduction of greenhouse gas emissions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gray B | 5 |
| #2 | Gray Bruce Alexander Alfred | 4 |
| #3 | Gray B A A | 2 |
| #4 | Bennett Brian Sidney | 2 |
| #5 | Todd Michael Allen | 2 |
| #6 | Tye F | 2 |
| #7 | Bennett B | 2 |
| #8 | Todd M | 2 |
| #9 | Buruusu Arekisandaa Arufuretsu | 2 |
| #10 | Shaw J | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB2101393A | Electrical cell | |
| GB2058440A | Galvanic cells | |
| IE790569L | Dry electric cells having a cathode mix which includes mno2 | |
| US4253232A | Method of manufacturing an electric battery | |
| GB2015811A | Electric batteries | |
| GB2032679A | Electrical button cells |