Inventor
CHANG WARREN
TW5 patents
⚠️ This page may combine multiple inventors who share the name “CHANG WARREN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PHILIP MORRIS INC
2 patentsUS5979461ANov 9, 1999
Smoking article wrapper having filler of hydromagnesite/magnesium hydroxide and smoking article made with said wrapper
PHILIP MORRIS INC62 citations95
US5927288AJul 27, 1999
Hydromagnesite/magnesium hydroxide fillers for smoking article wrappers and methods for making same
PHILIP MORRIS INC33 citations91