Inventor · disambiguated record
Debra M. Steffenhagen
Also filed as: STEFFENHAGEN DEBRA · STEFFENHAGEN DEBRA M
7 granted patents·308 citations·filing 1991–1997
89Inventor score
Files withVIRATEC THIN FILMS INC6
Top patents by PatentIndex Score
7 records- 0194US5372874ADC reactively sputtered optical coatings including niobium oxideVIRATEC THIN FILMS INC·Filed 1993·Granted Dec 13, 1994·92 cites·15 claims
- 0285US5450238AFour-layer antireflection coating for deposition in in-like DC sputtering apparatusVIRATEC THIN FILMS INC·Filed 1993·Granted Sep 12, 1995·68 cites·9 claims
- 0385US5407733AElectrically-conductive, light-attenuating antireflection coatingVIRATEC THIN FILMS INC·Filed 1991·Granted Apr 18, 1995·68 cites·20 claims
- 0475US5489369AMethod and apparatus for thin film coating an articleVIRATEC THIN FILMS INC·Filed 1993·Granted Feb 6, 1996·27 cites·16 claims
- 0564US5688389AMethod and apparatus for thin film coating an articleVIRATEC THIN FILMS INC·Filed 1995·Granted Nov 18, 1997·20 cites·21 claims
- 0664US5620572AMethod and apparatus for thin film coating an articleVIRATEC THIN FILMS INC·Filed 1995·Granted Apr 15, 1997·20 cites·13 claims
- 0760US6068738AMethod and apparatus for thin film coating an articleFiled 1997·Granted May 30, 2000·13 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →