Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Hand pump for delivering thick or liquid substances contained in bottles

Hand pump for delivering thick or liquid substances contained in bottles

US Patent 4899913 · Granted Feb 13, 1990

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Creamy substance dispenser having non-return valve1999
Atomized liquid dispenser applicable to manually operated pumps1998
Atomized liquid dispenser1998
Creamy substance dispenser, in particular for toothpaste1996
Dispenser for dispensing atomized fluids under pressure, provided with a shut-of1996
Pressurized liquid dispenser with members for locking it in its lowered position1996
Atomizer nozzle insert for hand pumps, particularly for lacquers1990
Atomizer nozzle insert for hand pumps, particularly for lacquers1990
Seal device for hand pumps dispensing paste or liquid products1990
Seal device for hand pumps dispensing paste or liquid products1990
Device, particularly for a hand pump, for delivering a predetermined quantity of1990
Device, particularly for a hand pump, for delivering a predetermined quantity of1990