Assignee
PHILIPS LIGHTING CORP
US·22 granted patents·530 citations·filing 1981–1989
Top patents by PatentIndex Score
22 records- 0198US4503360ACompact fluorescent lamp unit having segregated air-cooling meansPHILIPS LIGHTING CORP·Filed 1982·Granted Mar 5, 1985·167 cites·22 claims
- 0295US4602956ACermet composites, process for producing them and arc tube incorporating themPHILIPS LIGHTING CORP·Filed 1984·Granted Jul 29, 1986·69 cites·12 claims
- 0391US4463286ALightweight electronic ballast for fluorescent lampsPHILIPS LIGHTING CORP·Filed 1981·Granted Jul 31, 1984·64 cites·7 claims
- 0479US4500810AFluorescent lamp having integral light-filtering means and starting aidPHILIPS LIGHTING CORP·Filed 1983·Granted Feb 19, 1985·20 cites·10 claims
- 0578US4491766AHigh pressure electric discharge lamp employing a metal spiral with positive potentialPHILIPS LIGHTING CORP·Filed 1982·Granted Jan 1, 1985·20 cites·3 claims
- 0673US4475065AMethod of operating HID sodium lamp to minimize lamp voltage variation throughout lamp lifePHILIPS LIGHTING CORP·Filed 1982·Granted Oct 2, 1984·32 cites·3 claims
- 0773US4463277ACompact halogen-cycle incandescent lamp, and lamp unit utilizing such lamp as a light sourcePHILIPS LIGHTING CORP·Filed 1982·Granted Jul 31, 1984·26 cites·12 claims
- 0872US4506195AApparatus for operating HID lamp at high frequency with high power factor and for providing standby lightingPHILIPS LIGHTING CORP·Filed 1983·Granted Mar 19, 1985·26 cites·18 claims
- 0971US4631450ABallast adaptor for improving operation of fluorescent lampsPHILIPS LIGHTING CORP·Filed 1983·Granted Dec 23, 1986·23 cites·20 claims
- 1070US4525650AStarting and operating method and apparatus for discharge lampsPHILIPS LIGHTING CORP·Filed 1984·Granted Jun 25, 1985·25 cites·10 claims
- 1158US4479074AHigh intensity vapor discharge lamp with sintering aids for electrode emission materialsPHILIPS LIGHTING CORP·Filed 1982·Granted Oct 23, 1984·9 cites·6 claims
- 1251US4748368AThree way gas discharge lampPHILIPS LIGHTING CORP·Filed 1984·Granted May 31, 1988·6 cites·4 claims
- 1346US4629939ADischarge lamp with automatic shut offPHILIPS LIGHTING CORP·Filed 1984·Granted Dec 16, 1986·7 cites·11 claims
- 1440US4701673ABallast adaptor for improving operation of fluorescent lampsPHILIPS LIGHTING CORP·Filed 1986·Granted Oct 20, 1987·6 cites·13 claims
- 1538US4501992AEnergy conserving instant-start series-sequence fluorescent lamp system and fluorescent lamp with overcurrent protectionPHILIPS LIGHTING CORP·Filed 1982·Granted Feb 26, 1985·8 cites·12 claims
- 1634US4708679AMethod of making support means for discharge lamp tubesPHILIPS LIGHTING CORP·Filed 1986·Granted Nov 24, 1987·2 cites·3 claims
- 1734US4516446APrecision rotating rod guidePHILIPS LIGHTING CORP·Filed 1983·Granted May 14, 1985·8 cites·5 claims
- 1833US4774431AArc tube wire supportPHILIPS LIGHTING CORP·Filed 1986·Granted Sep 27, 1988·2 cites·4 claims
- 1933US4538091AHigh-pressure sodium lamp spring clip cross piece for electrode and end plug supportPHILIPS LIGHTING CORP·Filed 1983·Granted Aug 27, 1985·4 cites·4 claims
- 2027US4787865AThree-way lamp bases and method for making themPHILIPS LIGHTING CORP·Filed 1986·Granted Nov 29, 1988·4 cites·10 claims
- 2127US4781641ATool for making three-way lamp basesPHILIPS LIGHTING CORP·Filed 1986·Granted Nov 1, 1988·2 cites·5 claims
- 2223US4973878AFilament structure and method of making such structurePHILIPS LIGHTING CORP·Filed 1989·Granted Nov 27, 1990·0 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when PHILIPS LIGHTING CORP files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →