Inventor
SCHEFFERS DEREK JOHN
US8 patents
⚠️ This page may combine multiple inventors who share the name “SCHEFFERS DEREK JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MINIMAX VIKING RES & DEV GMBH
4 patentsUS11872425B2Jan 16, 2024
Fire protection systems and methods using fire protection devices installed in pipe fittings with an internally housed seal member
MINIMAX VIKING RES & DEV GMBH9 citations83
US11980786B2May 14, 2024
Proportioner for a fire protection system
MINIMAX VIKING RES & DEV GMBH0 citations58
US11596821B2Mar 7, 2023
Proportioner for a fire protection system
MINIMAX VIKING RES & DEV GMBH0 citations58
US11771936B2Oct 3, 2023
Proportioner for a fire protection system
MINIMAX VIKING RES & DEV GMBH0 citations48
MINIMAX VIKING PATENT MAN GMBH
4 patentsUS12330001B1Jun 17, 2025
Fire protection systems and methods using fire protection devices installed in pipe fittings with an internally housed seal member
MINIMAX VIKING PATENT MAN GMBH3 citations72
US12257465B2Mar 25, 2025
Fire protection systems and methods using fire protection devices installed in pipe fittings with an internally housed seal member
MINIMAX VIKING PATENT MAN GMBH4 citations72
US12478998B2Nov 25, 2025
Protection and installation device for fire protection sprinklers
MINIMAX VIKING PATENT MAN GMBH0 citations50
US12569708B2Mar 10, 2026
Protection and installation device for fire protection sprinkler
MINIMAX VIKING PATENT MAN GMBH0 citations48