Inventor · disambiguated record
Gerardus H. A. M. Van Der Steen
Also filed as: VAN DER STEEN GERARDUS H A M
5 granted patents·110 citations·filing 1978–1999
82Inventor score
Files withPHILIPS CORP5
Top patents by PatentIndex Score
5 records- 0181US4307315AHigh pressure discharge lamp with vessel having a UV radiation absorbing portion of quartz glassPHILIPS CORP·Filed 1978·Granted Dec 22, 1981·23 cites·5 claims
- 0279US4336048AMethod of producing doped quartz glassPHILIPS CORP·Filed 1980·Granted Jun 22, 1982·40 cites·3 claims
- 0366US4361779ALamp having a lamp vessel made of quartz glass, quartz glass and method of preparing quartz glassPHILIPS CORP·Filed 1981·Granted Nov 30, 1982·24 cites·9 claims
- 0450US5925582AGlass composition suitable for use in a fluorescent lamp, lamp envelope manufactured from said glass composition and fluorescent lamp provided with a lamp envelope of said glass compositionPHILIPS CORP·Filed 1997·Granted Jul 20, 1999·16 cites·3 claims
- 0539US6359386B1Electric lamp with metal shellPHILIPS CORP·Filed 1999·Granted Mar 19, 2002·7 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →