When the 14 year patent period expired a great number of other
corkscrew manufacturers were quick to see an opportunity to
produce Thomason corkscrews, notably Dowler who manufactured
A diligent collector will find badges for companies such as Coney,
James Heeley, Dowler, Rodgers, Lee, Robert Jones, Cope &
Cutler, Mapplebeck & Lowe, W. Brookes & son + many others.
Nobody knows how many Thomason type corkscrews have been
produced since the patent in 1802. It's known that they were
manufactured well into the 20th century, so probably more than
1,000,000 have been produced during that time.
Even today, due to the practicality, Thomason corkscrews are
produced & I'm sure they will be for years to come.