Inventor · disambiguated record
Donald L. Betzold
Also filed as: BETZOLD DONALD L
2 granted patents·1 pending application·37 citations·filing 2005–2014
62Inventor score
Technology areasE02D
Top patents by PatentIndex Score
3 records- 0190US7670086B2Method of repairing a manhole chimney using a stretchable sleeveLMK ENTPR INC·Filed 2005·Granted Mar 2, 2010·34 cites·19 claims
- 0264US8721216B2Method of repairing a manhole chimney using a stretchable sleeveKIEST JR LARRY W·Filed 2009·Granted May 13, 2014·3 cites·12 claims
- 0350US2014202570A1Method of repairing a manhole chimney using a stretchable sleeveKIEST JR LARRY W·Filed 2014·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →