Inventor
KOLMAN RICHARD P
US5 patents
⚠️ This page may combine multiple inventors who share the name “KOLMAN RICHARD P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HACH CO
4 patentsUS5872361AFeb 16, 1999
Turbidimeter with non-imaging optical concentrator
HACH CO91 citations96
US5604590AFeb 18, 1997
Nephelometer instrument
HACH CO53 citations93
US5506679AApr 9, 1996
Nephelometer instrument
HACH CO62 citations93
US6894778B2May 17, 2005
Low detection limit turbidimeter
HACH CO20 citations87