Midwest City, OK, United States of America

David L Heitman

This inventor holds 1 USPTO granted patent. Top assignee: Sierra Engineering Co.. Active years: 1978.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David L Heitman. Retrieved from https://idiyas.com/inventor/david-l-heitman

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 25(Granted Patents)


Company Filing History:


Years Active: 1978

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1 patent (USPTO):Explore Patents

Title: David L Heitman: Innovator in Safety Equipment

Introduction

David L Heitman is a notable inventor based in Midwest City, OK (US). He is recognized for his innovative contributions to safety equipment, particularly in the field of respiratory protection. His work has significantly impacted the safety of personnel in environments where air quality is compromised.

Latest Patents

Heitman holds a patent for a unique invention titled "Facemask and goggle combination for excluding smoke or noxious gases." This face mask is designed to supply oxygen to personnel, such as flight crews, during situations where there is inadequate air available. The mask features a device with a passageway that connects the interior of the mask to the exterior. It includes a manually operable, slidable valve stem that can block or open the exit for gas within the mask. When the valve is opened, oxygen is forced into the goggle cavity, effectively flushing out any smoke or noxious gas present.

Career Highlights

Heitman is currently employed at Sierra Engineering Co., where he continues to develop innovative safety solutions. His dedication to improving safety equipment has made him a valuable asset in his field. He has successfully combined engineering principles with practical applications to enhance the safety of individuals in hazardous environments.

Collaborations

Heitman has worked alongside notable colleagues, including Donald G Davis and John Wippler. Their collaborative efforts have contributed to advancements in safety technology and have fostered a culture of innovation within their workplace.

Conclusion

David L Heitman exemplifies the spirit of innovation in safety equipment design. His patented inventions, particularly the facemask and goggle combination, demonstrate his commitment to enhancing the safety of personnel in challenging environments. His contributions continue to make a significant impact in the field of safety engineering.

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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