Inventor · disambiguated record
Dennis I. Spencer
Also filed as: SPENCER DENNIS · SPENCER DENNIS I
4 granted patents·80 citations·filing 1993–2023
77Inventor score
Top patents by PatentIndex Score
4 records- 0172US5310290AProtective structure for excavationsSPENCER DENNIS I·Filed 1993·Granted May 10, 1994·34 cites·30 claims
- 0263US5306103AWheeled carriage assembly for trench shieldsSPENCER DENNIS I·Filed 1993·Granted Apr 26, 1994·25 cites·22 claims
- 0357US12462715B2Illuminated safety flag deviceSPENCER DENNIS·Filed 2023·Granted Nov 4, 2025·0 cites·1 claims
- 0453US5527137AKnife structure for shoring assemblies used in excavationsFiled 1994·Granted Jun 18, 1996·21 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →