PC

Piers St John Spencer Cave

Overall (All Time): #1,808,158 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11656035 Heat storing and heat transfer systems incorporating a secondary chamber selectively moveable into a primary heat storage member — 2023-05-23
10233784 Liquid heating appliance — 2019-03-19