'''Joseph Charles Marron''' (born 1959) is an American optical engineer and a principal engineering fellow at Raytheon. He is known for his work in developing advanced laser radar and the invention of holographic laser radar. He is a fellow of the Optical Society of America and in June 2018 was awarded the 10 millionth U.S. patent.

Marron was educated at University of Rochester's Institute of Optics. He received his undergraduate degree in 1981 and his PhD in 1986.<ref name=Rochester>{{cite press release |title=US patent office issues its 10 millionth patent to Rochester alumnus |url=http://www.rochester.edu/newscenter/us-patent-office-issues-10-millionth-patent-rochester-alumnus-325882/ |date=20 June 2018 |publisher=University of Rochester |access-date=3 July 2018}}</ref> While working at the Environmental Research Institute of Michigan (ERIM) he was issued his first patent in 1991.<ref>{{cite news |last=Moser |first=Molly |title=Joe Marron on 27 Years of Optics Inventions |url=https://www.osa-opn.org/home/career/2018/june/joe_marron_on_27_years_of_optics_inventions/ |newspaper=Optics and Photonics News |publisher=The Optical Society of America |date=22 June 2018}}</ref><ref>{{cite patent |country=US |number=5073021 |status=patent |title= Bifocal ophthalmic lens constructed from birefringent material |gdate=1991-12-17 |invent1=Marron, Joseph |assign1=Environmental Research Institute of Michigan}}</ref>

While at ERIM Marron was part of NASA's Hubble Aberration Recovery Project (HARP) team that "fixed" the Hubble Space Telescope through the installation of the Corrective Optics Space Telescope Axial Replacement (COSTAR) instrument.<ref>{{cite web |title=Optical Testing of the James Webb Space Telescope |url=https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20140009178.pdf |publisher=National Aeronautics and Space Administration |date=21 March 2014 |access-date=5 July 2018}}</ref> His was one of the groups that calculated the error in the mirror from the faulty images using phase retrieval,<ref name="FienupMarron1993">{{cite journal |last1=Fienup |first1=J. R. |last2=Marron |first2=J. C. |last3=Schulz |first3=T. J. |last4=Seldin |first4=J. H. |title=Hubble Space Telescope characterized by using phase-retrieval algorithms |journal=Applied Optics |volume=32 |issue=10 |year=1993 |pages=1747–67 |issn=0003-6935 |doi=10.1364/AO.32.001747|pmid=20820308 |bibcode=1993ApOpt..32.1747F |citeseerx=10.1.1.549.9187 }}</ref><ref>{{cite web |last=Fienup |first=James R. |title=Phase Retrieval: Hubble and the James Webb Space Telescope |url=http://cfao.ucolick.org/presentations/springretreat2003/SRO3_Fienup_Hubble.pdf |date=March 2003 |access-date=3 July 2018}}</ref> allowing the corrective optics to be designed.<ref>{{cite report |last1=Redding |first1=D. |last2=Serlin |first2=S. |last3=Boden |first3=A. |last4=Mo |first4=J. |last5=Hanisch |first5=R. |last6=Furey |first6=L. |title=Optical presecription of the HST |url=https://trs.jpl.nasa.gov/handle/2014/31621 |publisher=Jet Propulsion Laboratory |date=July 1995}}</ref>

in 1993, still at ERIM, Marron developed a method for holographic laser radar imaging.<ref>{{cite journal |last1=Marron |first1=Joseph C. |last2=Schroeder |first2=Kirk S. |title=Holographic laser radar |journal=Optics Letters |volume=18 |issue=5 |year=1993 |pages=385–387 |issn=0146-9592 |doi=10.1364/OL.18.000385|pmid=19802144 |bibcode=1993OptL...18..385M }}</ref> In 2004, while at Corning, he was elected a Fellow of the Optical Society of America for "contributions to the science of coherent imaging and the invention of holographic laser radar."<ref>{{cite web |title=2004 OSA Fellows |url=https://www.osa.org/en-us/awards_and_grants/fellow_members/recent_fellows/2004_fellows/ |publisher=Optical Society of America |access-date=3 July 2018}}</ref> Marron also worked for Lockheed Martin and later became a principle research fellow at Raytheon Space and Airborne Systems.<ref>{{cite journal |last1=Rabb |first1=David |last2=Marron |first2=Joseph |title=Special Section Guest Editorial: Computational Approaches to Imaging LADAR |journal=Optical Engineering |volume=54 |issue=3 |year=2015 |article-number=031101 |issn=0091-3286 |doi=10.1117/1.OE.54.3.031101|bibcode=2015OptEn..54c1101R |s2cid=57341030 |url=https://www.spiedigitallibrary.org/journals/Optical-Engineering/volume-54/issue-3/031101/Computational-Approaches-to-Imaging-LADAR/10.1117/1.OE.54.3.031101.pdf |doi-access=free }}</ref>

On June 19, 2018, Marron was granted patent number 10,000,000 titled "Coherent LADAR Using Intra-Pixel Quadrature Detection" It is for a system to improve laser detection and ranging (LADAR).<ref name=USPTO>{{cite press release |title=United States Issues Patent Number 10,000,000 |url=https://www.uspto.gov/about-us/news-updates/united-states-issues-patent-number-10000000 |publisher=United States Patent and Trademark Office |date=19 June 2018}}</ref><ref>{{cite patent |country=US |number=10000000 |status=patent |title=Coherent LADAR using intra-pixel quadrature detection |gdate=2018-06-19 |invent1=Marron, Joseph, |assign1=Raytheon Co}} </ref> The patent was also the first to receive the USPTO's redesigned patent cover, specifically unveiled in conjunction with the milestone event.<ref>{{cite web |title=10 Million Patents |url=https://10millionpatents.uspto.gov/ |publisher=United States Patent and Trademark Office |access-date=5 July 2018}}</ref> President Donald Trump signed the patent during a special ceremony at the White House. Marron was joined at the event by Secretary of Commerce, Wilbur Ross, USPTO Director Andrei Iancu, and Raytheon CEO Thomas Kennedy.<ref name=Raytheon /> The patent has been assigned to Raytheon.<ref name=Raytheon>{{cite press release |title=The Invention Engine: Raytheon receives the 10 millionth patent in history |url=https://www.raytheon.com/news/feature/invention-engine |publisher=Raytheon |date=21 June 2018}}</ref>

== References == {{reflist}}

{{authority control}} {{DEFAULTSORT:Marron, Joseph}} Category:20th-century American engineers Category:Living people Category:University of Rochester alumni Category:21st-century American engineers Category:1959 births Category:Optical engineers Category:Fellows of Optica (society) Category:Raytheon Company people Category:Lockheed Martin people