Patents by Inventor Bart Johnson
Bart Johnson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20240218102Abstract: Disclosed are co-polymers which are produced from reactive monomer mixtures and which have both high refractive index and a high Abbe number. These materials are well suited for use as implantable ophthalmic devices and have a refractive index which may be edited through application of energy. When used for an intraocular lens, the high refractive index allows for a thin lens which compresses to allow a small incision size.Type: ApplicationFiled: March 12, 2024Publication date: July 4, 2024Inventors: Azaam Alli, Bart Johnson, Scott L. Joslin, Ghulam Maharvi
-
Patent number: 11958923Abstract: Disclosed are co-polymers which are produced from reactive monomer mixtures and which have both high refractive index and a high Abbe number. These materials are well suited for use as implantable ophthalmic devices and have a refractive index which may be edited through application of energy. When used for an intraocular lens, the high refractive index allows for a thin lens which compresses to allow a small incision size.Type: GrantFiled: March 24, 2023Date of Patent: April 16, 2024Assignee: Johnson & Johnson Surgical Vision, Inc.Inventors: Azaam Alli, Bart Johnson, Scott L. Joslin, Ghulam Maharvi
-
Publication number: 20230265230Abstract: Disclosed are co-polymers which are produced from reactive monomer mixtures and which have both high refractive index and a high Abbe number. These materials are well suited for use as implantable ophthalmic devices and have a refractive index which may be edited through application of energy. When used for an intraocular lens, the high refractive index allows for a thin lens which compresses to allow a small incision size.Type: ApplicationFiled: March 24, 2023Publication date: August 24, 2023Inventors: Azaam Alli, Bart Johnson, Scott L. Joslin, Ghulam Maharvi
-
Patent number: 9504537Abstract: An intra-oral device for positioning oral tissues during medical treatment, for example, radiation treatment. The device includes upper and lower dental arch members configured to engage the maxillary and mandibular teeth or edentulous arch(es) of a patient, respectively. The upper and lower dental arch members are operatively coupled to provide a dental arch assembly. A protective element to displace or depress a patient's tongue is secured at a suitable working position with respect to the dental arch assembly. In an embodiment, provision is made for three-dimensional spatial adjustment of the protective element to a desired location, at least during initial fitting and assembly. The device is then secured to allow consistent repetition of the oral tissue positioning from treatment to treatment. The protective element may be configured to engage the tongue of a patient so that the tongue may be selectively positioned for treatment and/or diagnostic procedures.Type: GrantFiled: November 24, 2012Date of Patent: November 29, 2016Assignee: GRAYDUCK STENTS, LLCInventors: Bart Johnson, Amy Winston
-
Publication number: 20130131427Abstract: An intra-oral device for positioning oral tissues during medical treatment, for example, radiation treatment. The device includes upper and lower dental arch members configured to engage the maxillary and mandibular teeth or edentulous arch(es) of a patient, respectively. The upper and lower dental arch members are operatively coupled to provide a dental arch assembly. A protective element to displace or depress a patient's tongue is secured at a suitable working position with respect to the dental arch assembly. In an embodiment, provision is made for three-dimensional spatial adjustment of the protective element to a desired location, at least during initial fitting and assembly. The device is then secured to allow consistent repetition of the oral tissue positioning from treatment to treatment. The protective element may be configured to engage the tongue of a patient so that the tongue may be selectively positioned for treatment and/or diagnostic procedures.Type: ApplicationFiled: November 24, 2012Publication date: May 23, 2013Inventors: BART JOHNSON, AMY WINSTON
-
Publication number: 20110291031Abstract: An intra-oral device for protecting oral tissues during radiation treatment is disclosed. In an embodiment, the device includes substantially a U-shaped upper member and lower members coupled to the upper member at their first and the second ends, and a substantially oval-shaped protective element disposed between the first ends of the upper and lower members and the second ends of the upper and lower members and movably coupled with one of the upper or lower members so as to provide for a three-dimensional spatial adjustment of the protective element between the first and second ends of the upper and lower members. The upper and lower members are configured to receive upper and lower teeth of a patient and the protective element is configured to engage a tongue of the patient so that the tongue is selectively positioned for treatment and/or diagnostic procedures.Type: ApplicationFiled: May 9, 2011Publication date: December 1, 2011Applicant: Bart Johnson and Amy Winston DDS, PLLCInventors: Bart Johnson, Amy Winston
-
Patent number: 7809280Abstract: An optical transmitter comprising: an optical source modulated with an input digital data signal so as to generate a first, frequency-modulated digital signal; and an amplitude modulator, modulated with the logical inverse of the input digital data signal, for receiving the first, frequency-modulated signal and generating a second, amplitude-modulated and frequency-modulated digital signal; wherein the optical source and the amplitude modulator are each configured so as to produce positive transient chirp.Type: GrantFiled: August 21, 2007Date of Patent: October 5, 2010Assignee: Finisar CorporationInventors: Daniel Mahgerefteh, Yasuhiro Matsui, Xueyan Zheng, Bart Johnson, Duncan J W Walker, Parviz Tayebati
-
Patent number: 7555225Abstract: An optical communication system which has an optical signal source adapted to receive a base binary signal and produce a first signal, said first signal being frequency modulated; and an optical spectrum reshaper adapted to reshape the first signal into a second signal, said second signal being amplitude modulated and frequency modulated in which the frequency characteristics of said first signal, and the optical characteristics of said optical spectrum reshaper, being such that the frequency characteristics of said second signal are configured so as to increase the tolerance of the second signal to dispersion in a transmission fiber.Type: GrantFiled: February 28, 2005Date of Patent: June 30, 2009Assignee: Finisar CorporationInventors: Daniel Mahgerefteh, Yasuhiro Matsui, Xueyan Zheng, Bart Johnson, Duncan Walker, Parviz Tayebati
-
Patent number: 7505694Abstract: A fiber optic communication system for receiving an electronic digital data signal and transmitting the same, comprising an optical signal source adapted to receive the digital data signal and to produce a frequency modulated optical signal from a directly modulated semiconductor laser; an optical spectrum reshaper adapted to convert the frequency modulated optical signal into an amplitude modulated optical signal; and compensation apparatus for compensating for the adverse effects of the thermal chirp normally induced in the frequency modulated optical signal by modulating the semiconductor laser with the electronic digital data signal.Type: GrantFiled: May 2, 2005Date of Patent: March 17, 2009Assignee: Finisar CorporationInventors: Bart Johnson, Daniel Mahgerefteh, Kevin McCallion, Zhencan (Frank) Fan, David Piede, Parviz Tayebati
-
Publication number: 20080193143Abstract: An optical transmitter comprising: an optical source modulated with an input digital data signal so as to generate a first, frequency-modulated digital signal; and an amplitude modulator, modulated with the logical inverse of the input digital data signal, for receiving the first, frequency-modulated signal and generating a second, amplitude-modulated and frequency-modulated digital signal; wherein the optical source and the amplitude modulator are each configured so as to produce positive transient chirp.Type: ApplicationFiled: August 21, 2007Publication date: August 14, 2008Inventors: Daniel Mahgerefteh, Yasuhiro Matsui, Xueyan Zheng, Bart Johnson, Duncan JW Walker, Parviz Tayebati
-
Patent number: 7406267Abstract: A fiber optic transmitter comprising a digital driver adapted to adjust the crossing point of a digital base signal, an optical source adapted to receive the digital base signal and produce a frequency modulated optical signal, and an optical spectrum reshaper adapted to convert the frequency modulated optical signal to an amplitude modulated optical signal. A method for transmitting a signal, comprising: adjusting the crossing point of a digital base signal; providing the adjusted signal to an optical source to produce a frequency modulated optical signal; and providing the frequency modulated optical signal to an optical spectrum reshaper to convert the frequency modulated optical signal to an amplitude modulated optical signal.Type: GrantFiled: September 2, 2004Date of Patent: July 29, 2008Assignee: Finisar CorporationInventors: Daniel Mahgerefteh, Roeland Nuyts, Yasuhiro Matsui, Parviz Tayebati, Bart Johnson, Duncan Walker, Xueyan Zheng
-
Publication number: 20060078338Abstract: A fiber optic communication system for receiving an electronic digital data signal and transmitting the same, comprising an optical signal source adapted to receive the digital data signal and to produce a frequency modulated optical signal from a directly modulated semiconductor laser; an optical spectrum reshaper adapted to convert the frequency modulated optical signal into an amplitude modulated optical signal; and compensation apparatus for compensating for the adverse effects of the thermal chirp normally induced in the frequency modulated optical signal by modulating the semiconductor laser with the electronic digital data signal.Type: ApplicationFiled: May 2, 2005Publication date: April 13, 2006Inventors: Bart Johnson, Daniel Mahgerefteh, Kevin McCallion, Zhencan (Frank) Fan, David Piede, Parviz Tayebati
-
Publication number: 20060029358Abstract: In one form of the present invention, there is provided a fiber optic communication system comprising: an optical signal source adapted to receive a base binary signal and produce a first signal, said first signal being frequency modulated; and an optical spectrum reshaper adapted to reshape the first signal into a second signal, said second signal being amplitude modulated and frequency modulated; characterized in that: the frequency characteristics of said first signal, and the optical characteristics of said optical spectrum reshaper, being such that the frequency characteristics of said second signal are configured so as to increase the tolerance of the second signal to dispersion in a transmission fiber.Type: ApplicationFiled: February 28, 2005Publication date: February 9, 2006Inventors: Daniel Mahgerefteh, Yasuhiro Matsui, Xueyan Zheng, Bart Johnson, Duncan Walker, Parviz Tayebati
-
Publication number: 20050111852Abstract: A fiber optic transmitter comprising a digital driver adapted to adjust the crossing point of a digital base signal, an optical source adapted to receive the digital base signal and produce a frequency modulated optical signal, and an optical spectrum reshaper adapted to convert the frequency modulated optical signal to an amplitude modulated optical signal. A method for transmitting a signal, comprising: adjusting the crossing point of a digital base signal; providing the adjusted signal to an optical source to produce a frequency modulated optical signal; and providing the frequency modulated optical signal to an optical spectrum reshaper to convert the frequency modulated optical signal to an amplitude modulated optical signal.Type: ApplicationFiled: September 2, 2004Publication date: May 26, 2005Inventors: Daniel Mahgerefteh, Roeland Nuyts, Yasuhiro Matsui, Parviz Tayebati, Bart Johnson, Duncan Walker, Xueyan Zheng