Inventor · disambiguated record
William H. Frank
Also filed as: FRANK WILLIAM H
3 granted patents·63 citations·filing 1977–2001
72Inventor score
Technology areasE06C
Top patents by PatentIndex Score
3 records- 0166US6578663B2Step signalGREEN BULL INC·Filed 2001·Granted Jun 17, 2003·20 cites·8 claims
- 0266US5429207ARung lock and latch assembly for an extension ladderEMERSON ELECTRIC CO·Filed 1994·Granted Jul 4, 1995·36 cites·10 claims
- 0334US4177879ALadder and method of construction thereforEMERSON ELECTRIC CO·Filed 1977·Granted Dec 11, 1979·7 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →