Inventor · disambiguated record
Willis L. Winstrom
Also filed as: WINSTROM WILLIS L
6 granted patents·68 citations·filing 1999–2004
81Inventor score
Files withPENNFIELD OIL COMPANY6
Top patents by PatentIndex Score
6 records- 0189US6506402B1Chlortetracycline-containing animal feed compositions and methods for their usePENNFIELD OIL COMPANY·Filed 2000·Granted Jan 14, 2003·38 cites·104 claims
- 0277US6844006B1Process and apparatus for the preparation of chlortetracycline-containing animal feed compositionsPENNFIELD OIL COMPANY·Filed 2001·Granted Jan 18, 2005·8 cites·8 claims
- 0372US6773717B1Process and apparatus for the preparation of chlortetracycline-containing animal feed compositionsPENNFIELD OIL COMPANY·Filed 2003·Granted Aug 10, 2004·8 cites·46 claims
- 0470US7504112B1Process and apparatus for the preparation of chlortetracycline-containing animal feed compositionsPENNFIELD OIL COMPANY·Filed 2004·Granted Mar 17, 2009·3 cites·6 claims
- 0560US6761899B1Particulate animal feed supplements and processes for the preparation thereofPENNFIELD OIL COMPANY·Filed 1999·Granted Jul 13, 2004·11 cites·15 claims
- 0641US6562615B1Apparatus for the preparation of chlortetracycline-containing animal feed compositionsPENNFIELD OIL COMPANY·Filed 2000·Granted May 13, 2003·0 cites·30 claims
Join the waitlist — get patent alerts
Get an alert when Willis L. Winstrom 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 →