San Jose, CA, United States of America

James A Apffel, Jr

This inventor holds 4 USPTO granted patents. Top assignee: Hewlett-Packard Company. Active years: 1988-1995.


% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 3

Forward Citations = 23(Granted Patents)


Location History:

  • Los Gatos, CA (US) (1988)
  • San Jose, CA (US) (1993 - 1995)

Company Filing History:


Years Active: 1988-1995

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4 patents (USPTO):Explore Patents

Title: Innovations of James A Apffel, Jr.

Introduction

James A Apffel, Jr. is a notable inventor based in San Jose, CA (US). He has made significant contributions to the field of liquid chromatography-mass spectrometry systems. With a total of 4 patents to his name, Apffel has demonstrated a commitment to advancing technology in analytical chemistry.

Latest Patents

Among his latest patents is a method for interfacing liquid chromatography-mass spectrometry systems. This innovative system features a close-coupled momentum separator with an integral removable source volume for particle beam liquid chromatography/mass spectrometry. The design minimizes particle loss in the separator and enhances signal linearity and sensitivity. Another notable patent is a liquid chromatography-mass spectrometry system that can be configured as either a particle beam or an electrospray interface. This device incorporates structural elements common to both interfaces, eliminating the need for separate systems.

Career Highlights

James A Apffel, Jr. has had a distinguished career at Hewlett-Packard Company, where he has been instrumental in developing advanced analytical technologies. His work has significantly impacted the efficiency and effectiveness of mass spectrometry applications.

Collaborations

Throughout his career, Apffel has collaborated with talented individuals such as Robert G Nordman and Mirko Martich. These partnerships have fostered innovation and contributed to the success of his projects.

Conclusion

James A Apffel, Jr. continues to be a driving force in the field of liquid chromatography-mass spectrometry, with his innovative patents paving the way for future advancements. His contributions are invaluable to the scientific community and the industry at large.

Profile summary based on public USPTO records.
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