At the time of Twyford's death he was recognised as a leading pioneer in the application of principles of hygiene to sanitary appliances.
It is most probable that a London firm with George Jennings is attributed for releasing the first successful one-piece pedestal water closet.
In 1884, Twyford applied for the first patent for a ceramic baffle or "fan" that would aid the process of distributing the water around the basin; it was placed near the flush inlet.
[1] In 1887, Twyford exhibited in a catalogue the after flushing reservoir chamber in a previous basin trap water closet.
He included it in his 1879 catalogue, calling the device the "Lillyman"; however, regardless of its finer ingenuity compared to other products in the market, it did not match the success of its counterpart the National.
He produced and released a pedestal hand-basin made completely of earthenware that had "improved holes for the taps"; he eventually even attached overflow chambers and an outer-layer of material that was more pleasing to see to cover the iron brackets that supported the basin.
[1] In 1887, he built a new factory at Cliffe Vale in Stoke-on-Trent, near the Trent and Mersey Canal and the North Staffordshire Railway.
In 1903, to fend off the high demands of his German competitors, Twyford had established a new fireclay works in Ratingen, a town near Düsseldorf.
From 1898, Twyford lived in Whitmore Hall in Newcastle-under-Lyme and increased his public prominence, serving as High Sheriff of Staffordshire for 1906–07.
On 21 March 1921, Twyford died at the Chine Hotel in Boscombe in the suburb of Bournemouth and was buried in Whitmore churchyard.