Inventor

SWINDELL ROBERT FRANK

US3 patents

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

PENTAIR WATER POOL & SPA INC

2 patents

US7513993B2Apr 7, 2009

Filter devices including a porous body

PENTAIR WATER POOL & SPA INC21 citations86

US10427076B2Oct 1, 2019

Diatomaceous earth filter apparatus and method

PENTAIR WATER POOL & SPA INC7 citations79

SWINDELL ROBERT FRANK

1 patent

US8992775B2Mar 31, 2015

Diatomaceous earth filter apparatus and method

SWINDELL ROBERT FRANK7 citations74