Inventor

SCHAGEN FRANK

NL3 patents

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

THETFORD CORP INC

1 patent

US6189161B1Feb 20, 2001

Toilet for recreational vehicle with vent for the holding tank

THETFORD CORP INC40 citations84

THETFORD CORP

1 patent

US7293298B2Nov 13, 2007

Self-contained sanitary system for a vehicle

THETFORD CORP17 citations79

SCHAGEN FRANK

1 patent

US8516622B2Aug 27, 2013

Sanitary system for a vehicle including a removable holding tank

SCHAGEN FRANK2 citations45