Inventor · disambiguated record
Larry L. Birch
Also filed as: BIRCH LARRY L
3 granted patents·1 pending application·83 citations·filing 1999–2002
74Inventor score
Technology areasE04F
Files withTREAD EX INC3
Top patents by PatentIndex Score
4 records- 0179US6438909B2Heating method and assembly for staircaseTREAD EX INC·Filed 2000·Granted Aug 27, 2002·39 cites·11 claims
- 0264US6665987B2Staircase, staircase repair device and methods of fabricating sameTREAD EX INC·Filed 2001·Granted Dec 23, 2003·16 cites·9 claims
- 0354US6318033B1Staircase, staircase repair device and methods of fabricating sameTREAD EX INC·Filed 1999·Granted Nov 20, 2001·28 cites·12 claims
- 0439US2002189177A1StaircaseFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →