Inventor

SHAFFER JOHN W

86 patents

⚠️ This page may combine multiple inventors who share the name “SHAFFER JOHN W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SHAFFER JOHN W

GTE PROD CORP

Light-diffusing coating for a glass electric lamp bulb

Silk-screenable circuit paste

Die-stamped circuit board assembly having relief means-method of making

Flashlamp containment coating

Pyrotechnic cap with mechanically desensitized composition

Fluorescent lamp

Two contact, AC-operated negative glow fluorescent lamp

Glow discharge starter

Incandescent lamps including a combined getter

Die-stamped circuit board assembly having relief means to prevent total switch deformation

High intensity discharge lamp including arc extinguishing means

Radiation switch for photoflash unit

Connect switch

Radiant energy activated pyrotechnic cap having desiccant therein

Die-stamped circuit board assembly for photoflash devices

Method of making a die-stamped circuit board assembly for photoflash devices

Lead-in wire for compact fluorescent lamps

Negative glow discharge lamp having improved color stability and enhanced life

Method of constructing an electric lamp using carbon monoxide as a forming gas

Negative glow fluorescent lamp having discharge barrier

Incandescent lamps including a combined getter

Getter for incandescent lamps

Method for gettering incandescent lamps

Glow discharge starter containing thorium for improving dark starting

Prismatic sympathetic flash barriers

Miniature multilamp photoflash array

Sequential photoflash array and fabrication employing radiation-activated switches

Photoflash unit having reflector with openings surrounded by transparent regions

Photoflash lamp

Primer material and photoflash lamp

GTE SYLVANIA INC

Modified polycarbonate resin

Multilamp photoflash unit having radiant-energy-activated quick-disconnect switch

Photoflash lamp

Radiation switch for photoflash unit

Photoflash lamp and multilamp unit with electrostatic protection

Multilamp photoflash unit with electrostatic protection

Multilamp photoflash unit with static grounding system

Reflector-lamp module for photoflash array

Multilamp photoflash assembly with rotatable actuator

Multilamp photoflash unit having conductive adhesive connection

Photoflash lamp

Photoflash lamp with polycarbonate coating

Photoflash lamp with modified polycarbonate coating

OSRAM SYLVANIA INC

Fluorescent lamp with end of life arc quenching structure

Starting flag structure for tubular low pressure discharge lamps

Fluorescent lamp with end of life arc quenching structure

Cathode coating for thermionic arc discharge lamp cathodes

Starting flag for use in mercury discharge lamp and lamp employing same

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH

Low-pressure mercury-vapor discharge lamp, and method of placing mercury therein

NEXANS

Device and method protecting a connector from debris while validating connector position assurance engagement