He unsuccessfully contested the parliamentary election in Hanley as a Liberal in 1918.He was a member of King Street, Newcastle, Congregationa I church.In the terms of dinnerware, chintz has come to define ceramic dinnerware pieces for which the entire surface of the piece is covered with bold, intricate floral patterns.These intricate designs are applied to the ceramic blanks via lithographs.He was secretary of the Potteries Association for the Promotion of Federation, founded in 1907, and published 160 favourable replies to a circular letter to leaders of trade and industry in his Book of Opinions.Questioned by counsel for Fenton during the passage of the federation bill through Parliament and asked where he Iived Leonard Grimwade replied 'I sleep in Wolstanton but I live in the Potteries'.iscontinued in the early 1960's due to the high production costs associated with this style of decoration, Royal Winton Chintz has become highly desirable in the antique market today.Collectors Clubs have been established world-wide and many reference books have been published, with Christie's of London running auctions dedicated to Chintz pottery.
Following an advertisement in the 'Potteries gazette' in 1929, Royal Winton became the established trade name for Grimwades Limited and has remained so through to the present day.
Seeing potential in a fanciful design known as chintz, Leonard wanted to add this pattern to Grimwades tea sets.
A problem arose though when trying to mass produce the intricate chintz patterns using traditional hand painting techniques.
The brothers acquired several local potteries, and expanded their facilities to four locations.
The acquisitions allowed the Grimwades to expand into the popular and lucrative tea set market.