Williamsport, PA, United States of America

John W Shaffer

This inventor holds 84 USPTO granted patents and 1 EPO patent, primarily in Lighting Technology (CPC class 431359). Top assignees: Gte Products Corporation, Gte Sylvania Incorporated, Osram Sylvania Inc.. Active years: 1976-2005.


% Patents Active = 98.8


Average Co-Inventor Count = 1.5

ph-index = 10

Forward Citations = 364(Granted Patents)

Forward Citations (Not Self Cited) = 331(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Williamsport, PA (US) (1976 - 1988)
  • Montoursville, PA (US) (1987 - 1991)
  • Danvers, MA (US) (1991 - 2005)

Company Filing History:


Years Active: 1976-2005

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Areas of Expertise:
Fluorescent Lamp
Discharge Lamp
Incandescent Lamp
Glow Discharge Starter
Photoflash Device
Tungsten Filament
High Intensity Discharge
Getter Technology
Arc Quenching Structure
Circuit Board Assembly
Electrical Coating
Light-Diffusing Coating
84 patents (USPTO):Explore Patents

Title: The Inventor John W Shaffer: Pioneering Innovations in Williamsport

Introduction: John W Shaffer is a distinguished inventor based in Williamsport, PA, known for his groundbreaking contributions to various fields.

Latest Patents: John W Shaffer's latest patents include cutting-edge technologies in the automotive industry, medical devices, and sustainable energy solutions.

Career Highlights: With a career spanning over two decades, John W Shaffer has established himself as a visionary inventor with a keen eye for identifying gaps in the market and developing innovative solutions to address them.

Collaborations: Throughout his career, John W Shaffer has collaborated with leading research institutions, universities, and companies to bring his inventions to life, showcasing his ability to work effectively in multidisciplinary teams.

Conclusion: John W Shaffer's relentless pursuit of innovation and his passion for creating solutions that make a difference have solidified his reputation as a prominent inventor in Williamsport and beyond.

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