[1a] K. Giridhar, C.R. Venkatesh, “Simultaneous sharing of spectrum in wireless communications”, US Patent No: US 11937093 B2, Date of Patent: March 19, 2024. (Granted).

[1b] K. Giridhar, C.R. Venkatesh, “Simultaneous sharing of spectrum in wireless communications”, US Patent Application No: 18471116, Publication No: US-2024-0015521-A1, Publication Date: January 11, 2024. (Divisional Patent-1, Under examination).

[1c] K. Giridhar, C.R. Venkatesh, “Simultaneous sharing of spectrum in wireless communications”, US Patent Application No: 18471127, Publication No: US-2024-0015522-A1, Publication Date: January 11, 2024. (Divisional Patent-2, Under examination).

[2] K. Giridhar, C.R. Venkatesh, “Simultaneous sharing of spectrum in wireless communications”, India Patent No: 360451, Date of Patent: March 8, 2021. (Granted).

[3] B. Venkateswara Rao, G.R.B. Prasad, C.R. Venkatesh, C. Ramanathan, Y.S.S. Krishna Madan, K. Giridhar, K. S. Ramesh, Shashikant Yashwant Chaudhari, “A System for Exchange of Frequency Hopping States in Block Modulated Frequency Hopping Spectrum”, India Patent No: 513481, Date of Patent: Febraury 21, 2024. (Granted).

[4] D. Upalekar, S. Bhat, A. Mohan, R. Preethi, K. Giridhar, “Channel estimation, throughput and fairness for multi-user, multipleinput, multiple-output (MU-MIMO) systems through dynamic port allocation”, US Patent Application No: 18131303, Publication No: US-2023-0327916-A1, Publication Date: October 12, 2023. (Under examination).

[5] D. Upalekar, S. Bhat, A. Mohan, R. Preethi, K. Giridhar, “Channel estimation through dynamic allocation in downlink transmission for multi-user, multiple-input, multiple-output (MU-MIMO) systems”, US Patent Application No: 18131312, Publication No: US-2023-0327917-A1, Publication Date: October 12, 2023. (Under examination).

[6] D. Upalekar, S. Bhat, A. Mohan, R. Preethi, K. Giridhar, “Channel estimation through dynamic port allocation in uplink transmission for multi-user, multiple-input, multiple-output (MU-MIMO) systems”, US Patent Application No: 18131324, Publication No: US-2023-0327918-A1, Publication Date: October 12, 2023. (Under examination).

[7] K. Giridhar, S. Sendilramkumar, and A. Ayyar, “Interference cancelling block modulation”, US patent 10193649, granted May 2016, (re)published Jan. 2019.

[8] S. Kalyani, R. Lakshminarayanan, and K. Giridhar, “Robust channel estimation of OFDM systems”, US Patent 9,231,836, granted Oct. 2015, published Jan. 2016.

[9] K. Kuchi, K. Milleth, V. Ramaswamy, B. Dhivagar, K. Giridhar, B. Ramamurthi, M. K. Dileep, and K. Padmanabhan, “Precoding for single transmission streams in multiple antenna systems”, granted US Patent 9083399, published July 2015.

[10] K. Kuchi, K. Milleth, V. Ramaswamy, B. Dhivagar, K. Giridhar, B. Ramamurthi, M. K. Dileep, K. Padmanabhan, G. George, K. Prasanth, and Y. S. Reddy, “Pilot aided data transmission and reception with interference mitigation in wireless systems”, granted US Patent 9030992 B2, published May 2015.

[11] K. Kuchi, D. Jeniston, V. Ramaswamy, B. Dhivagar, K. Giridhar, B. Ramamurthi, D. Kalathil, M.S. Padmanabhan, ”Precoding for multiple transmission streams in multiple antenna systems”, granted US Patent 8,699,446, published Apr. 2014.

[12] K. Kuchi, D. Jeniston, V. Ramaswamy, B. Dhivagar, K. Giridhar, B. Ramamurthi, M.S. Padmanabhan, D. M. Kalathi, “Methods and systems for interference mitigation", granted US Patent 8,902,831, published Dec. 2014.

[13] K. Giridhar, R. David Koilpillai, J.D. Klutto Milleth, K.V. Srinivas, "A method of spatial multiplexing for high data rate wireless communication", granted Indian Patent 253683, published Aug. 2012.

[14] S. Mudulodu, K. Giridhar, “Training information transmission method in a block transmission system”, granted US Patent 7,333,456, published Feb. 2008.

[15] S. Rajagopal, P. Sreebhashyam, K. Giridhar, “Method and system for estimating a channel frequency response of a training symbol in a block transmission system”, US Patent App. 11/481,636, Sep. 2007.

[16] S. Mudulodu, P. Sreebhashyam, K. Giridhar, S. Rajagopal, “Method and system for estimating co-channel interference in a frame of a block transmission system”, US Patent App. 11/481,618, Sep. 2007.

[17] S. Rajagopal, P. Sreebhashyam, K. Giridhar, “Method and system for transmitting a frame in a block transmission system and for decoding the frame thereof”, US Patent App. 11/481,617, Sep. 2007.

[18] S. Mudulodu, K. Giridhar, “Method and system for transmitting training information in a block transmission system”, US Patent App. 11/188,476, Feb. 2006.