introduction

In 1860, I was was able to demonstrate a working device, and obtained a UK patent covering a partial vacuum, carbon filament incandescent lamp. However, the lack of good vacuum and an adequate electric source resulted in a short lifetime for the bulb and an inefficient light. In 1882, I took Edison to court in Britain for patent infringement. Edison lost and as part of the settlement, Edison was forced to take me in as a partner in his British electric works.