Inventor
GRUHLKE STEFAN WILLI JULIUS
NL8 patents
⚠️ This page may combine multiple inventors who share the name “GRUHLKE STEFAN WILLI JULIUS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SIGNIFY HOLDING BV
5 patentsUS12496772B2Dec 16, 2025
Method for including voids in polymer filaments for FDM printing
SIGNIFY HOLDING BV0 citations61
US11724444B2Aug 15, 2023
Cross-linked polymer filled polymer for 3D printed items
SIGNIFY HOLDING BV0 citations61
US12330366B2Jun 17, 2025
3D printing of a reflector using polymer filled with metal coated glass or mica particles and reflector obtainable thereby
SIGNIFY HOLDING BV0 citations58
US12145310B2Nov 19, 2024
FDM printed luminaires with surface texture
SIGNIFY HOLDING BV0 citations58
US12397498B2Aug 26, 2025
FDM printed item with dopant material
SIGNIFY HOLDING BV0 citations51