P

Inventor

CHRISTENSEN RONALD J

US8 patents
⚠️ This page may combine multiple inventors who share the name “CHRISTENSEN RONALD J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DUBOIS CHEM INC

3 patents
US4891141AJan 2, 1990

Oxygen scavenger for boiler water and method of use

DUBOIS CHEM INC23 citations91
US4874541AOct 17, 1989

All-in-one boiler water treatment composition

DUBOIS CHEM INC18 citations72
US4781843ANov 1, 1988

Chemical treatment for algae control in open water systems

DUBOIS CHEM INC11 citations72

DIVERSEY CORP

2 patents
US5424032AJun 13, 1995

Method and apparatus for controlling microorganisms

DIVERSEY CORP171 citations97
US5120661AJun 9, 1992

Method for detection and quantitative analysis for water treatment chemicals

DIVERSEY CORP39 citations91

CHEMED CORP

1 patent
US4719083AJan 12, 1988

Composition useful as corrosion inhibitor, anti-scalant and continuous biocide for water cooling towers and method of use

CHEMED CORP41 citations91

NALCO CHEMICAL CO

1 patent
US4055467AOct 25, 1977

Enzymatic dispersion of biological slimes

NALCO CHEMICAL CO13 citations66

CHRISTENSEN RONALD J

1 patent
US8196570B2Jun 12, 2012

Bow utilizing arcuate compression members to store energy

CHRISTENSEN RONALD J1 citations44