Inventor

KALL RONALD I

US3 patents

⚠️ This page may combine multiple inventors who share the name “KALL RONALD I”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DESIGN SAFETY CORP

2 patents

US6230924B1May 15, 2001

Closure indicator for cup lid

DESIGN SAFETY CORP67 citations93

US6207100B1Mar 27, 2001

Closure indicator for cup lid

DESIGN SAFETY CORP27 citations90

(unassigned)

1 patent

US6767293B2Jul 27, 2004

Golf club putter and method of putting

10 citations68