Inventor · disambiguated record
W. Douglas Obal
Also filed as: OBAL W D · OBAL W DOUGLAS
5 granted patents·3 pending applications·35 citations·filing 2001–2012
78Inventor score
Top patents by PatentIndex Score
8 records- 0192US7588058B2Coated pipes for harsh environmentsDU PONT·Filed 2005·Granted Sep 15, 2009·17 cites·3 claims
- 0283US7870877B2Coated pipes for harsh environmentsDU PONT·Filed 2009·Granted Jan 18, 2011·12 cites·4 claims
- 0379US8211497B2Process for forming a nonstick surface on the interior surface of a pipeMCKEEN LAURENCE WAINO·Filed 2009·Granted Jul 3, 2012·4 cites·7 claims
- 0460US8685493B2Process for forming a non-stick surface on the interior surface of a pipeMCKEEN LAURENCE WAINO·Filed 2012·Granted Apr 1, 2014·0 cites·5 claims
- 0560US8453740B2System of pipes for use in oil wellsMOHAN PIDATALA K·Filed 2010·Granted Jun 4, 2013·2 cites·8 claims
- 0655US2005229992A1Lined vessels for conveying chemicalsMCKEEN LAURENCE W·Filed 2005·Application pending·0 cites
- 0742US2006127622A1System of pipes for use in oil wellsMOHAN PIDATALA K·Filed 2005·Application pending·0 cites
- 0836US2002017516A1Cooking device with disposable insertFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →