SD

Stephen Dowdeswell

EL Edwards Limited: 11 patents #8 of 195Top 5%
Overall (All Time): #435,482 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12286974 Multi-stage turbomolecular pump Nigel Paul Schofield 2025-04-29
12110896 Axial flow vacuum pump with curved rotor and stator blades Nigel Paul Schofield 2024-10-08
12018691 Vacuum pump Nigel Paul Schofield 2024-06-25
11841021 Temperature control of a pumped gas flow William Foote, David Bedwell, Simon Benjamin Stevens 2023-12-12
11401935 Twin shaft pumps and a method of pumping Nigel Paul Schofield 2022-08-02
10337517 Gas transfer vacuum pump Nigel Paul Schofield, Ian David Stones 2019-07-02
9920761 Vacuum pump rotor for a vacuum pump having a roots pumping mechanism Nigel Paul Schofield 2018-03-20
9551333 Vacuum pump with longitudinal and annular seals Neil Turner, Sivabalan Kailasam, Alan Ernest Kinnaird Holbrook 2017-01-24
9279426 Multi stage, clam shell vacuum pump Nigel Paul Schofield 2016-03-08
8500422 Vacuum pump Nigel Paul Schofield, Peter Birch 2013-08-06
8500425 Roots pumps Nigel Paul Schofield 2013-08-06