Inventor · disambiguated record
David A. Theisen
Also filed as: THEISEN DAVID A
7 granted patents·152 citations·filing 1988–2006
86Inventor score
Files withMARPAC CORP7
Top patents by PatentIndex Score
7 records- 0188US6497493B1Illuminated safety helmetMARPAC CORP·Filed 2001·Granted Dec 24, 2002·93 cites·16 claims
- 0275USD311065SSound conditioner for masking intruding noisesMARPAC CORP·Filed 1988·Granted Oct 2, 1990·16 cites·1 claims
- 0374USD347008SSound conditionerMARPAC CORP·Filed 1992·Granted May 17, 1994·17 cites·1 claims
- 0466USD335129SSynthesized telephone call announcerMARPAC CORP·Filed 1990·Granted Apr 27, 1993·13 cites·1 claims
- 0545USD364404SSound conditionerMARPAC CORP·Filed 1994·Granted Nov 21, 1995·5 cites·1 claims
- 0643USD559721SSafety light coverMARPAC CORP·Filed 2006·Granted Jan 15, 2008·5 cites·1 claims
- 0740US6406164B1Safety lightMARPAC CORP·Filed 2000·Granted Jun 18, 2002·3 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →