Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DC

Daniel N. Campau

FCFlow-Rite Controls: 43 patents #1 of 15Top 7%
PepsiCo: 2 patents #551 of 1,581Top 35%
BEBesser: 1 patents #14 of 28Top 50%
HUHydra Unlimited: 1 patents #6 of 7Top 90%
SSS. C. Johnson & Son: 1 patents #961 of 1,588Top 65%
TCTrojan Battery Company: 1 patents #7 of 20Top 35%
Fennville, MI: #2 of 39 inventorsTop 6%
Michigan: #689 of 86,293 inventorsTop 1%
Overall (All Time): #41,392 of 4,157,543Top 1%
58 Patents All Time

Issued Patents All Time

Showing 26–50 of 58 patents

Patent #TitleCo-InventorsDate
6257626 Connector for fluid handling system 2001-07-10
6227229 High gain fluid control valve assembly 2001-05-08
6082702 Tubing pinch valve and mounting bracket assembly 2000-07-04
6065498 Liquid flow control device 2000-05-23
6003840 Flow control valve for use with boat water distribution apparatus 1999-12-21
5876639 Livewell and baitwell aerator 1999-03-02
5850972 Liquid dispenser and method 1998-12-22
5832946 Low profile battery refill system 1998-11-10
5634592 Flow control apparatus and method for making same 1997-06-03
5542605 Automatic liquid dispenser 1996-08-06
5409135 Liquid dispensing apparatus 1995-04-25
5353957 Apparatus and method for controlled dispensing of a liquid 1994-10-11
5284176 Battery refill system 1994-02-08
5236175 Three position livewell control valve 1993-08-17
5197708 Tubing pinch valve device 1993-03-30
5181540 Electric multi-point positioner 1993-01-26
5164643 Electric multi-point positioner for a rotary component 1992-11-17
5090442 Field repairable apparatus for use in filling containers to a predetermined level 1992-02-25
5048557 Main valve and seat for use in filling containers to a predetermined level 1991-09-17
4948095 Shut-off valve 1990-08-14
4927568 Apparatus for aerating water in a container 1990-05-22
4865776 Apparatus for aerating water in a container 1989-09-12
4832073 System for filling a baitwell in a fishing boat 1989-05-23
4819577 Fluid flow indicator 1989-04-11
4708084 System for distributing water flow between a reservoir and a water source 1987-11-24