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Invited Presentations 

  1. Using Modeling and Simulations as a tool to gather critical insights, Keynote address at Comsol Conf., Bangalore, Nov. 28-29 2019

  2. Making Safe Water Commonplace, WONCA South Asia region Conference 2015, Dhaka, Bangladesh Feb 2015

  3. Challenges in Providing Safe Water to Meet the Threat of Emerging Contaminants, 3rd policy support brainstorming on safe water and sanitation, nov 2014

  4. Enabling Technologies for Making Safe Water Commonplace., Second Intl. Conference on Emerging Technologies for Clean Water- IIT Madras, Oct 2014

  5. Making Safe Water Commonplace, Invited presentation at Dutch Celebration of UN World Water Day 2014 at Leeuwarden, The Netherlands, March 2014

  6. Harnessing Science and Technology to meet the need for safe drinking water, Indian Medical Association’s celebration of World Health day, April 2012

  7. Is experimentation more intuitive?, Keynote address at Comsol Conf., Bangalore, Nov. 4-5 2011

  8. Mundane Materials, Fascinating Structures, Exciting Designs; Golden Jubilee Symposium on Fabrication at Small Scale and Indo- US conference on Fabrionics, IIT Kanpur, December 2009

  9. Polystyrene Spheres as Dirt Mimics: A Laundry Problem; Department of material Science, Anna Univ., Chennai, Oct. 2008, Department of Physics, Univ. of Hyderabad, Oct. 2008

Journal Publications

  1. Effect of increasing electrical conductivity and hydrophilicity on the electrosorption capacity of activated carbon electrodes for capacitive deionization, Tinto Alencherry, Naveen A.R., Somnath Ghosh, Jency Daniel and Venkataraghavan R., Desalination, Volume 415, 1 August 2017, Pages 14–19

  2. Lead Poisoning in drinking water: A review of health impact and evaluation of removal technologies, Babita Baruwati and Venkataraghavan R, Journal of the Institution of Public Health Engineers, India, 2015-2016, Number 3, pp 17-27, October 2015

  3. Electric Field Induced Cloudy-Clear Transitions in Micellar Solutions of a Block Copolymeric Amphiphile, Janhavi S. Raut, Charu Duggal, R. Venkataraghavan, Sudipta Ghoshdastidar, Franklin D. C, Arindam Roy and Vijay. M. Naik, The Royal Society of Chemistry, RSC Adv., 2013, 3, 12341-12348

  4. Electrospinning Combined with Non-solvent Induced Phase Separation to Fabricate Highly Porous and Hollow Sub-micron Polymer Fibers, Karthik Nayani, Hari Katepalli, Chandra S. Sharma,  Ashutosh Sharma, Sandip Patil and R. Venkataraghavan, Ind. Eng. Chem. Res. 2012, 51, 1761–1766

  5. A simplified model to predict the current–voltage relationship of an electro-chlorination cell; A Mukherjee, J Raut and R Venkataraghavan, Journal of Applied Electrochemistry: Volume 40, Issue 9 (2010), Page 1659.

  6. Photoresist Derived Electrospun Carbon Nanofibers with Tunable Morphology and Surface Properties; Chandra S. Sharma, Rajesh Vasita, Devendra K. Upadhyay, Ashutosh Sharma, Dhirendra S. Katti and R. Venkataraghavan, Ind. Eng. Chem. Res. 2010, 49, 2731–2739

  7. Resorcinol–formaldehyde based carbon nanospheres by electrospraying; Chandra S Sharma, Sandip Patil, Suman Saurabh, Ashutosh Sharma and R Venkataraghavan, Bull. Mater. Sci., Vol. 32, No. 3, June 2009, pp. 239–246

  8. Studies on the nucleation, dynamics and structure of the Si(111)-Ö3 x Ö3-Ag surface using surface second-harmonic generation, Venkataraghavan R, Aono M, Suzuki T, Surface Science, 517 (1-3): 65-74 Oct 1 2002.

  9. Growth Of InSb epitaxial layers on GaAs (001) substrates by LPE and their characterizations, Dixit VK, Rodrigues BV, Bhat HL, Venkataraghavan R, Chandrasekaran KS, Arora BM, Journal Of Crystal Growth, 235 (1-4): 154-160 Feb 2002.

  10. Effect of lithium ion irradiation on the transport and optical properties of bridgman grown n-type InSb single crystals, Dixit VK, Rodrigues BV, Bhat HL, Kumar R, Venkataraghavan R, Chandrasekaran KS, Arora BM, Journal Of Applied Physics 90 (4): 1750-1753 Aug 15 2001.

  11. Influence of compressive strain on the arsenic incorporation in MOVPE-grown InAsP/InP single quantum wells, Venkataraghavan R, Gokhale MR, Shah AP, Bhattacharya A, Chandrasekaran KS, Arora BM, Journal Of Crystal Growth, 221: 535-539 Dec 2000

  12. Absorption and photoluminescence spectra of the diluted magnetic semiconductor Ga1-XFexSb, Karar N, Basu S, Venkataraghavan R, Arora BM, Journal Of Applied Physics, 88 (2): 924-926 Jul 15 2000

  13. Design and fabrication of liquid phase epitaxy system, Venkataraghavan R, Udayashankar NK, Rodrigues BV, Rao KSRK, Bhat HL, Bulletin Of Materials Science, 22 (2): 133-137 Apr 1999

  14. The effect of temperature gradient and ampoule velocity on the composition and other properties of bridgman-grown Indium antimonide, Venkataraghavan R, Rao KSRK, Bhat HL, Journal Of Crystal Growth, 186 (3): 322-328 Mar 1998

  15. Influence of growth parameters on the surface and interface quality of laser deposited InSb/CdTe heterostructures, Venkataraghavan R, Rao KSRK, Hegde MS, Bhat HL, physica status solidi A-applied research, 163 (1): 93-100 Sep 1997

  16. The effect of growth parameters on the position of the melt-solid interface in bridgman growth of Indium antimonide, Venkataraghavan R, Rao KSRK, Bhat HL, Journal Of Physics D-Applied Physics, 30 (17): L61-L63 Sep 7 1997

  17. Low threshold ovonic switching in a-Si:H/Insb heterostructures, Venkataraghavan R, Rao KSRK, Bhat HL, Pal S, Dubey GC, Solid State Communications, 102 (10): 759-762 Jun 1997

  18. Pulsed laser deposition of Indium antimonide, Venkataraghavan R, Satyalakshmi KM, Rao KSRK, Sreedhar AK, Hegde MS, Bhat HL, Bulletin Of Materials Science, 19 (1): 123-129 Feb 1996

Conference Publications

  1. Effect of materials and process interventions on the performance and life of electrodes in a CDI cell. Jency Daniel, Somnath Ghosh, Tinto J Alencherry and R. Venkataraghavan, IUMRS ICA 2013

  2. Modelling the Adsorption of Ions on Electrodes in a Flow Cell, R Venkataraghavan, Tinto Alencherry and Naveen A, COMSOL Conferences, Bangalore, November 2013.

  3. Design of a Controlled Dosing Scheme for Liquids using a Venturi, M. Dagaonkar, V. Kumaran, R. Venkataraghavan, D. C. Franklin, COMSOL Conferences, Bangalore, November 2012.

  4. Mundane Materials, Fascinating Structures, Exciting Designs, R. Venkataraghavan, J. Raut and S. Ghoshdastidar, Golden Jubilee Symposium on Fabrication at Small Scale and Indo- US conference on Fabrionics, IIT Kanpur, December 2009.

  5. Multiscale material manipulation employing dielectrophoretic forces, R. Venkataraghavan, J. Raut, R. Thaokar, V. A. Juvekar and V. M. Naik, 2nd International Conference on Multi-scale Structures and Dynamics of Complex Systems, 4th and 5th September, 2008, Bangalore, India.

  6. Adsorption of trisiloxane surfactants on model substrates, Bhattacharyya T, Shanthil M, Venkataraghavan R and Dastidar SG, International Symposium on recent Trends in Surface and Colloid Science (ISSCS-2007), November 15-16, 2007, Kolkata, India

  7. Growth of InSb epitaxial films on GaAs (001) substrates by LPE and their structural characterization, V. K. Dixit, B. V. Rodrigues,R. Venkataraghavan, K. S. Chandrasekhran B. M. Arora andH. L. Bhat, accepted in ICCG-13/ICVGE-11 Jul-Aug 2001, Kyoto Japan.

  8. Evaluation of structure and electrical properties of InSb epitaxial films grown on GaAs (001) substrates by liquid phase epitaxy (LPE), V. K. Dixit, B. V. Rodrigues, R. Venkataraghavan, K. S. Chandrasekhran, B. M . Arora and H. L. Bhat. Submitted to ICMAT-2001, July 2001 Singapore (MRS Singapore).

  9. Effect of Lithium ion irradiation on transport and optical properties of Bridgman grown n-InSb single crystals V.K.Dixit, B.V Rodrigues and H.L.Bhat, 1st Asian Conference on Crystal Growth and Crystal Technology (CGCT), Aug-29-Sept-1 2000, Sendai, Japan .

  10. Material Issues of MOVPE grown III-V Arsenide and Phosphide Quantum Structures for Laser Diodes, B.M. Arora, A. Bhattacharya, K.S. Chandrasekharan, S. Datta, M.R. Gokhale, B. Karmakar, A.P. Shah, T.K. Sharma and R. Venkataraghavan, Proc. of Intl. Conference on Fiber Optics and Photonics, Photonics 2000, Dec. 18-20, Calcutta, India pp 820

  11. Highly-strained InGaAs/GaAs (l>1mm) quantum well diode lasers M.R.Gokhale, A.Bhattacharya, A.P.Shah, S. Pal, R. Venkataraghavan and B.M.Arora, Proc. of Intl. Conference on Fiber Optics and Photonics, Photonics 2000, Dec. 18-20, Calcutta, India pp 670

  12. Influence of compressive strain on the arsenic incorporation in MOVPE grown InAsP/InP single quantum wells, R Venkataraghavan, M R Gokhale, A P Shah, A Bhattacharya, K S Chandrasekaran and B M Arora, Xth Intl. Conf. On Metal Organic Vapor Phase Epitaxy, Sapporo, Japan (2000)

  13. Study of material aspects of strained InAsP/InP MQW structures for application to 1.3 mm laser devices. R Venkataraghavan, M R Gokhale, A P Shah, K S Chandrasekharan and B M Arora, The 87th Indian Science Congress Assocn., Pune, India (2000)

  14. Surface Photovoltage Spectroscopy of Quantum Structures, Shouvik Datta, B M Arora, R Venkataraghavan and Shailendra Kumar, Intl. Workshop on Physics of Semiconductor Devices `99 (IWPSD-99), Delhi, India (1999)

  15. Synthesis and Characterization of Strained Quantum Structures on Plane and V Grooved InP Substrate, R Venkataraghavan, B Karmakar, M R Gokhale, S Datta, K S Chandrasekaran, J John,   S G Lokhre, and B M Arora, Intl. Workshop on Physics of Semiconductor Devices `99 (IWPSD-99), Delhi, India (1999)

  16. The design and fabrication of s liquid phase epitaxial growth system and growth of InSb, InGaSb and InTlSb films,  R Venkataraghavan, N K Udayashankar, K S R K Rao and H L Bhat, Intl. Union of Mater. Res. Soc.-ICA 98, Bangalore, India (1998)

  17. Low threshold ovonic switching in a-Si:H/InSb heterostructures, R Venkataraghavan, K S R K Rao, H L Bhat, S Pal and G C Dubey, Intl. Union of Mater. Res. Soc.-ICA 97, Makuhari, Chiba Japan (1997)

  18. Influence of film stoichiometry on the interface quality in InSb/CdTe, R Venkataraghavan, School on Quantum Optoelectronics, TIFR, Bombay (1995)

  19. Pulsed Laser Deposition of Indium antimonide, R Venkataraghavan, K M Satyalakshmi, K S R K Rao, A K Sreedhar, M S Hegde and H L Bhat, 6th AGM, MRSI, Kharagpur (1994)

  20. Design of heater arrangement for zone refining indium antimonide, R Venkataraghavan and H L Bhat, Vth National Seminar on Crystal Growth, A5, 21, Madras (1993)

1) Family number: 31386035 (US2004237943A)

Title: (US2004237943A)

[EN] IMPROVED CLEANING METHOD AND COMPOSITION

Inventor(s): (std): RAUT JANHAVI ; VENKATARAGHAVAN RAJANARAYANA ; TARAPHDAR SUMIT ; SURESH SAMBAMURTHY JAYARAMAN ; SURE ANITA ; NAIK VIJAY MUKUND ; KUMAR KARTIK ;

​

2) Family number: 56730080 (US2015307373A)

Title: (US2015307373A)

[EN] IMPREGNATED ELECTRODE FOR CAPACITIVE DEIONISATION, PROCESS FOR PREPARING IT AND APPARATUS EMPLOYING THE ELECTRODES

Inventor(s): (std): ALENCHERRY TINTO JOHNICHAN ; GHOSH SOMNATH ; JOHNICHAN ALENCHERRY TINTO ; RAJANARAYANA VENKATARAGHAVAN ;

​

3) Family number: 65616092 (WO17076711A1)

Title: (WO17076711A)

[EN] A LEACHABLE SOLID COMPOSITION AND PROCESS OF MANUFACTURE THEREOF

Inventor(s): (std): DAGAONKAR MANOJ VILAS ; KUMARAN VETRI ; RAJANARAYANA VENKATARAGHAVAN ; SAMADDER SATYAJIT ; TENDULKAR MAHESH SUBHASH 

​

4) Family number: 70945095 (WO18153613A1)

Ttle: (WO18153613A)

[EN] DEVICE AND METHOD FOR CLEANING SURFACE OF OBJECTS

Inventor(s):  (std) : ANUMALASETTY SILPA ; MAJUMDAR UDAYAN ; NALAWADE SHRIKANT ; RAJANARAYANA VENKATARAGHAVAN ; SAKSENA SKAND 

​

5) Family number: 53001185 (US2014197033A)

Title: (US2014197033A)

[EN] DEVICE AND PROCESS FOR IMPROVED RECOVERY OF DEIONISED WATER THROUGH CAPACTIVE DEIONISATION CELL

Inventor(s):  (std) : RAJANARAYANA VENKATARAGHVAN ; TINTO JOHNICHAN ALENCHERRY ;

​

6) Family number: 55706246 (ZA201500323A)

Ttle: (ZA201500323A)

[EN] A METHOD FOR PURIFICATION OF WATER USING CAPACITIVE DEIONISATION

Inventor(s):  (std) : ALENCHERRY TINTO JOHNICHAN ; ANANDAMPILLAI RAMANUJAPURAM ANIRUDH ; GHOSH SOMNATH; RAJANARAYANA VENKATARAGHAVAN;

​

7) Family number: 61182322 (WO15193087A1)

Title: (WO15193087A)

[EN] LAYERED DOUBLE HYDROXIDES FOR PURIFICATION OF WATER

Inventor(s):  (std) : AYAN SARKAR ; MAHAPATRA SAMIRAN ; MAHESH SUBHASH TENDULKAR ; RAJANARAYANA VENKATARAGHAVAN ;

​

8) Family number: 65493322 (WO17067808A1)

Title: (WO17067808A)

[EN] ELECTRODE FOR CAPACITIVE DEIONIZATION

Inventor(s):  (std) : RAJANARAYANA VENKATARAGHAVAN ; GHOSH SOMNATH ; DANIEL JENCY 

​

9) Family number: 33039341 (US2008202569A)

Title: (US2008202569A)

[EN] CLEANING DEVICE

Inventor(s):  (std) : CHANDRA FRANKLIN DAVID ; JAYARAMAN SURESH SAMBAMURTHY ; KARTIK KUMAR ; KUMAR SINGH AMIT ; MUKUND NAIK VIJAY ; RAUT JANHAVI SANJAY ; SUMIT TARAPHDAR ; RAJANARAYANA VENKATARAGHAVAN

​

10) Family number: 63313342 (WO16131754A1)

Title: (WO16131754A)

[EN] FILTER IMPREGNATED WITH COPPER

Inventor(s):  (std) : MAJUMDAR UDAYAN ; RAJANARAYANA VENKATARAGHAVAN ; SAMADDER SATYAJIT 

​

11) Family number: 51065354 (ZA201302540A)

Title: (ZA201302540A)

[EN] A RESIDENCE TIME CHAMBER

Inventor(s):  (std) : CHANDRA FRANKLIN DAVID ; RAJANARAYANA VENKATARAGHAVAN 

​

12) Family number: 67177368 (WO17174429A1)

Title: (WO17174429A)

[EN] ELECTRODE FOR CAPACITIVE DEIONISATION

Inventor(s):  (std) : ALENCHERRY TINTO JOHNICHAN ; GHOSH SOMNATH ; RAJANARAYANA VENKATARAGHAVAN 

​

13) Family number: 63313369 (WO16131697A1)

Title: (WO16131697A)

[EN] MICROPOROUS MEMBRANE HAVING METALLIC COATING

Inventor(s):  (std) : ALENCHERRY TINTO JOHNICHAN ; MATTATHIL SUKUMARAN SUMA ; RAJANARAYANA VENKATARAGHAVAN 

​

14) Family number: 50640483 (ZA201301418A)

Title: (ZA201301418A)

[EN] LOW COST WATER PURIFICATION DEVICE

Inventor(s):  (std) : VAN DE POLL JONKHEER HENDRIK THEODOOR ; CHANDRA FRANKLIN DAVID ; RAJANARAYANA VENKATARAGHAVAN ;

​

15) Family number: 65423502 (WO17060088A1)

Title: (WO17060088A)

[EN] FLOW CELL FOR REDUCING VIABLE MICROORGANISMS IN A FLUID

Inventor(s):  (std) : CHANDRA FRANKLIN DAVID ; RAJANARAYANA VENKATARAGHAVAN 

​

16) Family number: 62745549 (USD769408S)

Title: (USD769408S)

[EN] WATER PURIFIER WITH FORTIFICATION UNIT

Inventor(s):  (std) : RAJANARAYANA VENKATARAGHAVAN ; KUMARAN VETRI ; KUMARAN KIRAN 

​

17) Family number: 56477593 (US2015296856A)

Title: (US2015296856A)

[EN] DIETARY SUPPLEMENT DOSING DEVICE

Inventor(s):  (std) : FRANKLIN DAVID CHANDRA ; GIRISH SHANKA GOPALKRISHNA ; MANOJ VILAS DAGAONKAR ; VENKATARAGHAVAN RAJANARAYANA ; VETRI KUMARAN

​

18) Family number: 40838637 (US2009306231A)

Title: (US2009306231A)

[EN] PROCESS FOR PREPARING AN EMULSION

Inventor(s):  (std) : AKELLA SATHISH VENKATA ; CHANDRA FRANKLIN DAVID ; JAYARAMAN SURESH SAMBAMURTHY ; KUMAR SINGH AMIT ; MUKUND NAIK VIJAY ; RAJANARAYANA VENKATARAGHAVAN ; RAUT JANHAVI SANJAY ;

​

19) Family number: 45012782 (WO10057809A1)

Title: (WO10057809A)

[EN] A TOTAL MASS FLOW METER AND A WATER PURIFICATION DEVICE

Inventor(s):  (std) : VENKATARAGHAVAN RAJANARAYANA ; RAMACHANDRAN RAJEESHKUMAR ; MAHAPATRA SAMIRAN ; FRANKLIN DAVID CHANDRA 

​

20) Family number: 53521807 (WO13053627A1)

Title: (WO13053627A)

[EN] A FAUCET MOUNTED LIQUID FORTIFICANT DOSING DEVICE AND DISPENSION METHOD

Inventor(s):  (std) : CHANDRA FRANKLIN DAVID ; DAGAONKAR MANOJ VILAS ; KUMARAN VETRI ; RAJANARAYANA VENKATARAGHAVAN 

​

21) Family number: 43686895 (WO09106406A1)

Title: (WO09106406A)

[EN] A PROCESS AND A DEVICE FOR ELECTROLYTICALLY REMOVING A STAIN FROM A FABRIC

Inventor(s):  (std) : DESHPANDE NITIN SIDDHESHWAR ; MUKHERJEE ARIJIT ; NAIK VIJAY MUKUND ; RAUT JANHAVI SANJAY ; VENKATARAGHAVAN RAJANARAYANA 

 

Published filings from Patbase and does not include recent filings (since 2016). These applications have been filed in various countries and are in different stages of processing.

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