DC

David Charlesworth

PI Polymedica Industries: 2 patents #3 of 8Top 40%
ML Magma Global Limited: 1 patents #9 of 17Top 55%
Overall (All Time): #817,913 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
11402038 End fitting for a composite pipe Luke Rumsey 2022-08-02
5756035 Method of making an access graft and a vascular prosthesis Christopher John Underwood, Kerm Sin Chian 1998-05-26
5549860 Method of forming a vascular prosthesis Christopher John Underwood, Kerm Sin Chian 1996-08-27
5132066 Method of forming a bio-compatible vascular prosthesis Kerm Sin Chian, Christopher John Underwood 1992-07-21
4427958 Telephone transducers Derek Smith 1984-01-24
4191945 Tactile indicating device Martin R. Hannen 1980-03-04