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For the Inventor, By the Inventor

Ridgecrest, CA, United States of America

Robert Dale Chapman

USPTO Granted Patents = 14

Average Co-Inventor Count = 1.9

ph-index = 2

Forward Citations = 15(Granted Patents)


Company Filing History:

goldMedal12 out of 16,080 
 
USA As Represented by Secretary of the Navy
 patents
silverMedal2 out of 832,843 
Other
 patents

Years Active: 2001-2013

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14 patents (USPTO):Explore Patents
1. 8444783 - 3,3,7,7-tetrakis(difluoramino)octahydro-1,5-diazocinium salts (2013-05-21),
2. 8426583 - Processes for preparing certain hexaazaisowurtzitanes and their use in preparing hexanitrohexaazaisowurtzitane (2013-04-23),
3. 8426582 - Processes for preparing certain hexaazaisowurtzitanes and their use in preparing hexanitrohexaazaisowurtzitane (2013-04-23),
4. 8268993 - Processes for preparing certain hexaazaisowurtzitanes and their use in preparing hexanitrohexaazaisowurtzitane (2012-09-18),
5. 8268991 - Processes for preparing certain hexaazaisowurtzitanes and their use in preparing hexanitrohexaazaisowurtzitane (2012-09-18),
6. 8221566 - Process for employing HNFX as a biocidal explosive (2012-07-17),
7. 8008527 - Octafluoropentaerythrityltetramine (octafluoro-peta) and process for its preparation (2011-08-30),
8. 7875714 - Processes for preparing certain hexaazaisowurtzitanes and their use in preparing hexanitrohexaazaisowurtzitane (2011-01-25),
9. 7632943 - Method for making 3,3,7,7-tetrakis(difluoramino)octahydro-1,5-dinitro-1,5-diazocine (HNFX) (2009-12-15),
10. 7563889 - 3,3,7,7,-tetrakis(difluoramino)octahydro-1,5-diazocinium salts and method for making the same (2009-07-21),
11. 6562985 - Geminal-dinitro-1-5 diazocine derivatives (2003-05-13),
12. 6417355 - Geminal-dinitro-1-5 diazocine derivatives (2002-07-09),
13. 6395899 - Electronegatively substituted pyrimidines and intermediates leading to RNFX (2002-05-28),
14. 6310204 - 5,5-bis(difluoramino)hexahydro-1,3-dinitropyrimidine (RNFX) and certain electronegatively substituted pyrimidines (2001-10-30),

Title: The Innovative Journey of Robert Dale Chapman

Introduction: Robert Dale Chapman, an accomplished inventor based in Ridgecrest, California, has made significant contributions to the field of chemical engineering with an impressive portfolio of 14 patents. His work primarily focuses on advancing the science behind novel chemical compounds and processes.

Latest Patents: Among his most recent innovations are the patents for 3,3,7,7-tetrakis(difluoramino)octahydro-1,5-diazocinium salts and processes related to hexaazaisowurtzitanes. The first patent pertains to the development of 3,3,7,7-Tetrakis(difluoramino)octahydro-1,5-diazocinium intermediate salts achieved through difluoramination and subsequent N-denosylation or N-deprotection methods. These compounds are seen as valuable precursors to HNFX, as well as other members in the unique class of 3,3,7,7-tetrakis(difluoramino)octahydro-1,5-diazocines. Furthermore, his work on preparing certain hexaazaisowurtzitanes has led to a revolutionary heavy-metal-free sequence, resulting in a more efficient and scalable process for converting hexaallylhexaazaisowurtzitane (HAllylIW) to hexanitrohexaazaisowurtzitane (CL-20).

Career Highlights: Throughout his career, Robert has worked on innovative projects under the auspices of the United States of America, as represented by the Secretary of the Navy. His inventive mindset has continuously positioned him at the forefront of research in chemical applications relevant to defense and aerospace industries.

Collaborations: Robert has collaborated with notable individuals in the field, including Richard A. Hollins and Thomas J. Groshens. These partnerships have allowed for a broader exchange of ideas and have played a crucial role in the successful development of his patented technologies.

Conclusion: Robert Dale Chapman's journey as an inventor illustrates a commitment to innovation and scientific advancement. With a strong portfolio of patents and collaborations, he continues to make impactful contributions that resonate across various industries. His work not only highlights the potential of chemical engineering but also sets a precedent for the future of inventions in this field.

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