San Diego, CA, United States of America

John L Stoffel, Jr

This inventor holds 33 USPTO granted patents and 3 published patent applications and 11 EPO patents, primarily in Inkjet Printing Technology. Top assignees: Hewlett-Packard Development Company, L.p., Hewlett-Packard Company, E.i. Dupont De Nemours and Company. Active years: 1988-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John L Stoffel, Jr. Retrieved from https://idiyas.com/inventor/john-l-stoffel-jr

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 33 

% Patents Active = 90.9

 

Average Co-Inventor Count = 3.1

ph-index = 16

Forward Citations = 728(Granted Patents)


Company Filing History:


Years Active: 1988-2026

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Areas of Expertise:
Biocide Composition
Printable Recording Media
Ink Compositions
Inkjet Ink Sets
Aqueous Inks
Drop Generator
Thermal Ink Jet
Color Inkjet Printer
Dissimilar Pigments
Highligher Markers
Paper Enhancement
Bleed-Free Printing
33 patents (USPTO):Explore Patents

Title: The Innovative Contributions of John L Stoffel, Jr. in San Diego, CA

Introduction

John L Stoffel, Jr. has made significant strides in the field of print media and recording technologies. Based in San Diego, California, he holds an impressive portfolio of 32 patents, showcasing his inventive spirit and commitment to innovation. His work has greatly impacted how printing media is developed and utilized in contemporary applications.

Latest Patents

Among his recent contributions, John has developed several notable patents. One of his latest innovations involves a print medium specifically designed for inkjet printing. This patented print medium comprises a base substrate combining cellulosic fibers, a sizing material, and a multivalent cation salt, all of which enhance the printing process.

Additionally, John has created a printable recording media that weighs below 75 grams per square meter (gsm). This innovation features a blend of hardwood and softwood fibers, with the total fiber content comprising at least 80% of the recording media's total weight. The inclusion of polymeric-modified pigment carbon black further optimizes the media's performance, representing a significant advancement in the field.

Career Highlights

John's career includes valuable experiences at prominent companies like Hewlett-Packard Development Company, L.P. and Hewlett-Packard Company. During his time at these organizations, he contributed to various projects that emphasized the importance of advanced materials in printing technologies.

Collaborations

Throughout his professional journey, John has collaborated with notable peers, including Ronald Albert Askeland and Keshava A Prasad. These collaborations have facilitated the exchange of ideas and advancements, allowing for novel solutions within the realm of print media.

Conclusion

John L Stoffel, Jr.'s contributions to print technology highlight his role as an innovator in his field. His 32 patents reflect a commitment to enhancing the efficiency and effectiveness of printing media, paving the way for future developments. As the demands of the printing industry evolve, John continues to play an essential part in shaping the landscape of this technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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