Inventor · disambiguated record
John D. Speight
Also filed as: SPEIGHT JOHN · SPEIGHT JOHN D
3 granted patents·45 citations·filing 1999–2013
69Inventor score
Technology areasB22F
Top patents by PatentIndex Score
3 records- 0184US8734714B2Magnet recyclingHARRIS IVOR REX·Filed 2011·Granted May 27, 2014·13 cites·25 claims
- 0268US6399146B1Method of applying a corrosion-resistant coatingUNIV BIRMINGHAM·Filed 1999·Granted Jun 4, 2002·31 cites·21 claims
- 0367US9663843B2Magnet recyclingUNIV BIRMINGHAM·Filed 2013·Granted May 30, 2017·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →