Inventor · disambiguated record
John P. Holt
Also filed as: HOLT JOHN P
4 granted patents·1 pending application·50 citations·filing 1974–2003
76Inventor score
Files withVALLEY MINERAL PRODUCTS CORP3
Top patents by PatentIndex Score
5 records- 0176US6634721B2Trailer locking deviceFiled 2001·Granted Oct 21, 2003·19 cites·31 claims
- 0259US3972722AAlumina-zircon bond for refractory grainsVALLEY MINERAL PRODUCTS CORP·Filed 1974·Granted Aug 3, 1976·15 cites·8 claims
- 0347US4231800ADry heat setting refractory and methods of using sameVALLEY MINERAL PRODUCTS CORP·Filed 1979·Granted Nov 4, 1980·11 cites·8 claims
- 0446US4253590ADry heat setting refractory and methods of using sameVALLEY MINERAL PRODUCTS CORP·Filed 1979·Granted Mar 3, 1981·5 cites·10 claims
- 0542US2005062344A1Trailer locking systemFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →