Inventor · disambiguated record
Sanford F. Campbell
Also filed as: CAMPBELL SANFORD · CAMPBELL SANFORD F
22 granted patents·747 citations·filing 1987–2008
97Inventor score
Files withLETRO PRODUCTS INC14CAMPBELL SANFORD F3PENTAIR POOL PRODUCTS INC3PENTAIR WATER POOL & SPA INC2
Top patents by PatentIndex Score
22 records- 0198US6099091ATraction enhanced wheel apparatusLETRO PRODUCTS INC·Filed 1998·Granted Aug 8, 2000·169 cites·14 claims
- 0292USD471330SAutomatic swimming pool cleanerLETRO PRODUCTS INC·Filed 2002·Granted Mar 4, 2003·48 cites·1 claims
- 0392USD421512SAutomatic swimming pool cleanerLETRO PRODUCTS INC·Filed 1996·Granted Mar 7, 2000·46 cites·1 claims
- 0489US5933899ALow pressure automatic swimming pool cleanerLETRO PRODUCTS INC·Filed 1998·Granted Aug 10, 1999·78 cites·18 claims
- 0587US7726342B2Variable output pressure backup valvePENTAIR WATER POOL & SPA INC·Filed 2008·Granted Jun 1, 2010·13 cites·11 claims
- 0685US6802963B2Pool cleaner debris bagPENTAIR POOL PRODUCTS INC·Filed 2002·Granted Oct 12, 2004·32 cites·18 claims
- 0784US5893188AAutomatic swimming pool cleanerLETRO PRODUCTS INC·Filed 1996·Granted Apr 13, 1999·50 cites·24 claims
- 0882US6003184AAutomatic swimming pool cleanerLETRO PRODUCTS INC·Filed 1999·Granted Dec 21, 1999·45 cites·18 claims
- 0977US6193885B1Pool cleaner debris bagLETRO PRODUCTS INC·Filed 1998·Granted Feb 27, 2001·47 cites·9 claims
- 1076US7373948B2Variable output pressure backup valvePENTAIR WATER POOL & SPA INC·Filed 2004·Granted May 20, 2008·15 cites·7 claims
- 1174US5603135APool cleaner with replaceable mastLETRO PRODUCTS INC·Filed 1995·Granted Feb 18, 1997·40 cites·23 claims
- 1270US6423217B1Pool cleaner having vortex drive tubeLETRO PRODUCTS INC·Filed 2000·Granted Jul 23, 2002·15 cites·20 claims
- 1368US6357478B1Suction flow regulatorLETRO PRODUCTS INC·Filed 2000·Granted Mar 19, 2002·12 cites·15 claims
- 1467USD379693SPool cleaner debris bagLETRO PRODUCTS INC·Filed 1995·Granted Jun 3, 1997·14 cites·1 claims
- 1566US6158464ALow pressure back-up valve for pool cleanerLETRO PRODUCTS INC·Filed 1998·Granted Dec 12, 2000·25 cites·15 claims
- 1664US6379542B1Pool cleaner with righting weight assemblyLETRO PRODUCTS INC·Filed 2000·Granted Apr 30, 2002·10 cites·17 claims
- 1762USD489150STruck swimming pool cleanerPENTAIR POOL PRODUCTS INC·Filed 2002·Granted Apr 27, 2004·12 cites·1 claims
- 1861US4856913APool sweep bagCAMPBELL SANFORD F·Filed 1988·Granted Aug 15, 1989·26 cites·2 claims
- 1958US6625833B1Pool cleaning apparatus with adjustable bumper assemblyPENTAIR POOL PRODUCTS INC·Filed 2000·Granted Sep 30, 2003·6 cites·15 claims
- 2058US5077853APool cleanerCAMPBELL SANFORD F·Filed 1991·Granted Jan 7, 1992·25 cites·5 claims
- 2144US6035879AAutomatic fill valve assemblyLETRO PRODUCTS INC·Filed 1996·Granted Mar 14, 2000·10 cites·16 claims
- 2237US4784171APool sweep modificationsCAMPBELL SANFORD F·Filed 1987·Granted Nov 15, 1988·9 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Sanford F. Campbell files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →