P

Inventor

NICHOLSON DONALD

US6 patents
⚠️ This page may combine multiple inventors who share the name “NICHOLSON DONALD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AQUALITY INC

3 patents
US4828803AMay 9, 1989

Swimming pool chemical dispenser and method of making same

AQUALITY INC26 citations89
US4825528AMay 2, 1989

Chemical depletion signal for a swimming pool chemical dispenser

AQUALITY INC29 citations89
US4819293AApr 11, 1989

Adapter and pole assembly

AQUALITY INC42 citations89

AQUAITY INC

2 patents
US4822571AApr 18, 1989

Metering mechanism for a swimming pool chemical dispenser

AQUAITY INC26 citations88
US4828804AMay 9, 1989

Swimming pool chemical dispenser with restraining tether

AQUAITY INC22 citations76

MERCK FROSST CANADA INC

1 patent
US5681936AOct 28, 1997

Method of purification of recombinant human interleukin-5

MERCK FROSST CANADA INC5 citations60