Patents by Inventor Raghupathi Neelarapu

Raghupathi Neelarapu 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: 20240122059
    Abstract: A compound of Formula I, is provided. In Formula I, one of Z1, Z2, and Z3 is N and the remainder are C; each of L1 and L2 is independently selected from a direct bond and a linking group; at least one of R1, R2, RA, RB, RC, RD, and RE comprises a group R* having a structure selected form the group consisting of Formula II, -Q(R3)(R4)a(R5)b, Formula III, and Formula IV, Each R, R?, R?, R1, R2, R3, R4, R5, RA, RB, RC, RD, RE, RF, RG, and RH is independently hydrogen or a General Substituent, with the proviso that group R* is not adamantyl. Formulations, OLEDs, and consumer products containing the compound are also provided.
    Type: Application
    Filed: September 27, 2023
    Publication date: April 11, 2024
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Hsiao-Fan CHEN, Geza SZIGETHY, Rasha HAMZE, Nicholas J. THOMPSON, Hojae CHOI, Weiye GUAN, Raghupathi NEELARAPU, Charles J. STANTON, Douglas WILLIAMS, Ving Jick LEE, Joseph A. MACOR, Dmitry ANDRIANOV, Chao LIANG, Steven Kit CHOW, Tyler FLEETHAM, Peter WOLOHAN, Morgan C. MACINNIS
  • Publication number: 20230371360
    Abstract: In one aspect, provided is a compound of Formula I, In Formula I, M is Pt or Pd; L has the structure F1 is or a direct bond; rings A, B, C, D, and F are independently monocyclic rings or multicyclic fused ring systems; each of X1 to X10 is independently C or N; each of Z1 to Z4 is C or N; each of L1 to L5 is a direct bond or an organic linker, each of a, b, c, and d is 0 or 1; each K1 to K4 is a direct bond, O, or S; each of Z1 to Z4 that is connected to O or S is C; and each RA, RB, RC, RD, RE, and RX is independently hydrogen or a substituent.
    Type: Application
    Filed: July 21, 2023
    Publication date: November 16, 2023
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Hsiao-Fan CHEN, Morgan C. MACINNIS, Noah HORWITZ, Rasha HAMZE, Fadi M. JRADI, Sean Michael RYNO, Douglas WILLIAMS, Charles J. STANTON, Raghupathi NEELARAPU, Weiye GUAN, Joseph A. MACOR, Geza SZIGETHY
  • Patent number: 11814403
    Abstract: Tetradentate platinum complexes comprising an imidazole/benzimidazole carbene having a structure of Formula I is disclosed. In Formula I, M is Pd or Pt. These platinum carbenes with the specific substituents disclosed herein are novel and provides phosphorescent emissive compounds that exhibit physical properties that can be tuned, such as sublimation temperature, emission color, and device stability.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: November 14, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Hsiao-Fan Chen, Tyler Fleetham, Peter Wolohan, Jason Brooks, Pierre-Luc T. Boudreault, Charles J. Stanton, III, Olexandr Tretyak, Raghupathi Neelarapu, Katarina Rohlfing, Douglas Williams
  • Patent number: 11802136
    Abstract: A compound having the following formula is disclosed. The compound is useful as an emitter in OLED applications.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: October 31, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Hsiao-Fan Chen, Morgan C. Macinnis, Nicholas J. Thompson, Tyler Fleetham, Jason Brooks, Scott Beers, Peter Wolohan, Sean Michael Ryno, Ivan Milas, Charles J. Stanton, III, Olexandr Tretyak, Raghupathi Neelarapu, Katarina Rohlfing, Douglas Williams
  • Publication number: 20230250120
    Abstract: Disclosed is a compound of Formula I: useful as emitters in OLEDs; where the variables in Formula I are defined in the present disclosure.
    Type: Application
    Filed: April 20, 2023
    Publication date: August 10, 2023
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Rasha HAMZE, Charles J. STANTON, Douglas WILLIAMS, Eugene S. GUTMAN, Paul MOGADATI, Raghupathi NEELARAPU, Weiye GUAN, Chao LIANG
  • Patent number: 11696492
    Abstract: A novel compound having a benzimidazole based structure is disclosed that is selected from one of the following structures: The compound is useful in improving photophysical performance of OLEDs.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: July 4, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Hsiao-Fan Chen, Daniel W. Silverstein, Peter Wolohan, Tyler Fleetham, Jason Brooks, Charles J. Stanton, III, Olexandr Tretyak, Raghupathi Neelarapu, Katarina Rohlfing, Douglas Williams
  • Publication number: 20230159578
    Abstract: A compound of Formula I, is provided. In Formula I, one of Z1, Z2, and Z3 is N and the remainder are C; each of L1 and L2 is independently selected from a direct bond and a linking group; at least one of R1, R2, RA, RB, RC, RD, and RE comprises a group R* having a structure selected form the group consisting of Formula II, -Q(R3)(R4)a(R5)b, Formula III, and Formula IV, Each R, R?, R?, R1, R2, R3, R4, R5, RA, RB, RC, RD, RE, RF, RG, and RH is independently hydrogen or a General Substituent, with the proviso that group R* is not adamantyl. Formulations, OLEDs, and consumer products containing the compound are also provided.
    Type: Application
    Filed: January 4, 2023
    Publication date: May 25, 2023
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Hsiao-Fan CHEN, Geza SZIGETHY, Rasha HAMZE, Nicholas J. THOMPSON, Hojae CHOI, Weiye GUAN, Raghupathi NEELARAPU, Charles J. STANTON, Douglas WILLIAMS, Ving Jick LEE
  • Publication number: 20230065887
    Abstract: A compound of Formula I, is provided. In Formula I, one of Z1, Z2, and Z3 is N and the remainder are C; each of L1 and L2 is independently selected from a direct bond and a linking group; at least one of R1, R2, RA, RB, RC, RD, and RE comprises a group R* having a structure selected form the group consisting of Formula II, -Q(R3)(R4)a(R5)b, Formula III, and Formula IV, Each R, R?, R?, R1, R2, R3, R4, R5, RA, RB, RC, RD, RE, RF, RG, and RH is independently hydrogen or a General Substituent, with the proviso that group R* is not adamantyl. Formulations, OLEDs, and consumer products containing the compound are also provided.
    Type: Application
    Filed: August 31, 2022
    Publication date: March 2, 2023
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Hsiao-Fan CHEN, Geza SZIGETHY, Rasha HAMZE, Nicholas J. THOMPSON, Hojae CHOI, Weiye GUAN, Raghupathi NEELARAPU, Charles J. STANTON, Douglas WILLIAMS, Ving Jick LEE
  • Publication number: 20230002430
    Abstract: In one aspect, provided is a compound of Formula I, In Formula I, M is Pt or Pd; L has the structure F1 is or a direct bond; rings A, B, C, D, and F are independently monocyclic rings or multicyclic fused ring systems; each of X1 to X10 is independently C or N; each of Z1 to Z4 is C or N; each of L1 to L5 is a direct bond or an organic linker; each of a, b, c, and d is 0 or 1; each K1 to K4 is a direct bond, O, or S; each of Z1 to Z4 that is connected to O or S is C; and each RA, RB, RC, RD, RE, and RX is independently hydrogen or a substituent.
    Type: Application
    Filed: May 12, 2022
    Publication date: January 5, 2023
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Hsiao-Fan CHEN, Morgan C. MACINNIS, Noah HORWITZ, Rasha HAMZE, Fadi M. JRADI, Sean Michael RYNO, Douglas WILLIAMS, Charles J. STANTON, Raghupathi NEELARAPU, Weiye GUAN
  • Publication number: 20210284672
    Abstract: Tetradentate platinum complexes including an imidazole/benzimidazole carbene having a structure of Formula I is disclosed. In Formula I, M is Pd or Pt. These platinum carbenes with the specific substituents disclosed herein are novel and provides phosphorescent emissive compounds that exhibit physical properties that can be tuned, such as sublimation temperature, emission color, and device stability.
    Type: Application
    Filed: May 6, 2021
    Publication date: September 16, 2021
    Applicant: Universal Display Corporation
    Inventors: Hsiao-Fan CHEN, Tyler FLEETHAM, Peter WOLOHAN, Jason BROOKS, Pierre-Luc T. BOUDREAULT, Charles J. STANTON, III, Olexandr TRETYAK, Raghupathi NEELARAPU, Katarina ROHLFING, Douglas WILLIAMS, Rasha HAMZE
  • Publication number: 20200216481
    Abstract: Tetradentate platinum complexes comprising an imidazole/benzimidazole carbene having a structure of Formula I is disclosed. In Formula I, M is Pd or Pt. These platinum carbenes with the specific substituents disclosed herein are novel and provides phosphorescent emissive compounds that exhibit physical properties that can be tuned, such as sublimation temperature, emission color, and device stability.
    Type: Application
    Filed: March 3, 2020
    Publication date: July 9, 2020
    Applicant: Universal Display Corporation
    Inventors: Hsiao-Fan Chen, Tyler Fleetham, Peter Wolohan, Jason Brooks, Pierre-Luc T. Boudreault, Charles J. Stanton, III, Olexandr Tretyak, Raghupathi Neelarapu, Katarina Rohlfing, Douglas Williams
  • Publication number: 20200220090
    Abstract: A novel compound having a benzimidazole based structure is disclosed that is selected from one of the following structures: The compound is useful in improving photophysical performance of OLEDs.
    Type: Application
    Filed: March 3, 2020
    Publication date: July 9, 2020
    Applicant: Universal Display Corporation
    Inventors: Hsiao-Fan CHEN, Daniel W. SILVERSTEIN, Peter WOLOHAN, Tyler FLEETHAM, Jason BROOKS, Charles J. STANTON, III, Olexandr TRETYAK, Raghupathi NEELARAPU, Katarina ROHLFING, Douglas WILLIAMS
  • Patent number: 10000452
    Abstract: Provided herein are quinolone-based compounds that can be used for treatment and/or prevention of malaria and formulations thereof. Also provided herein are methods of treating and/or preventing malaria in a subject by administering a quinolone-based compound or formulation thereof provided herein.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: June 19, 2018
    Assignees: University of South Florida, Northeastern University
    Inventors: Roman Manetsch, Dennis E. Kyle, Raghupathi Neelarapu, Jordany R. Maignan, Cynthia L. Lichorowic, Alexis N. LaCrue