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List of patents submitted by WRI & Labs for the year 2011-12

SL. NO.
TITLE
INVENTOR
IPR TYPE
1
A method to optically determine the heat exchanger metal temperature
Dr. S.Dharmalingam
Mr. K.Karthikayan
Patent
2
A method to optically determine the stress in pressure parts and heat exchanger(s)
Dr. S.Dharmalingam
Mr. K.Karthikayan
Patent
3
A novel flux composition to obtain enhanced penetration during TIG welding of mild steel
Mr. C.P.Ravichandran
Mr. N.Rajasekaran
Patent
4
A reference block for phased array ultrasonic testing of MAIB welded tube butt joint
Mr. N.Dhansekaran
Mr. S.Manimozhi
Dr. S.Suresh
Patent
5
Evaluation of non linear component of residual stress during hole drilling method as per ASTM standard
Dr. G.Ravichandran

Copyright

6
Fatigue life assessment of welded components as per ASME code
Dr. G.Ravichandran
Copyright
7
A method and procedure for welding tension bars to transition panel to control distortion
Dr. N.Raju
Mr. V.SUdharsanam
Mr. Srivastav
Mr. Surya Rao Ravipati
Patent
8
A modified jet entry and exit profile path and a method for eliminating blow-out blemish during hole machining in non-ferrous materials using abrasive water jet cutting technique
Mr. V.Sudharasanam
Mr. Vikas Srivastav
Dr. N.Raju
Patent
9
Method for identification of various ferrous materials, electrodes used for ferrous material welding and residual mechanical properties of serviced ferrous materials through measurement of coercive force
Mr. R.Vetriselvan
Mr. V.Sudharsanam
Dr. N.Raju
Dr. S.Suresh
Patent
10
A new automotive method for bifurcate tubes welding
Mr. N.Rajasekaran
Mr. Lucky Gaur
Dr. A.Raja
Patent
11
A novel method to enhance shielded metal arc welding productivity during attachment welding of thick walled pressure vessel and a formulation for coated electrode for same
Mr. C.P.Ravichandran
Dr. A.Raja
Patent
12
Methodology for metallurgical evaluation of eroded coating samples
Dr. R.Nagalakshmi
Dr. S.Suresh
Patent
13
Improved pulsed GMAW techniques for hand hole pipe  welding
Dr. K.Devakumaran
Mr. Shanmugasundaram
Mr. N.Rajasekaran
Dr. A.Raja
Patent
14
A closed loop controller apparatus for MIAB welding machine
Dr. P.R.Venkateswaran
Mr. K.Ganesh Kumar
Dr. G.Buvanashekaran
Patent
15
ATIG welding of high wall thickness boiler tubes of grade SA 106 Gr.C using deep penetration flux
Mr. Dhanesh K Verma
Dr. A.Raja
Mrs. A.Santhakumari
Mr. N.Rajasekaran
Mr. Lucky Gaur
Patent
16
Robotic GMAW of HRSG module header to finned tubes in vertical position
Mrs. A.Santhakumari
Mr. Dhanesh K Verma
Mr. N.Rajasekaran
Dr. A.Raja
Dr. S.Suresh
Patent
17
Laser cladding of hand facing rings for internal cladding applications
Mr. B.Shanmugarajan
Mr. K.Ganeshkumar
Dr. G.Buvanashekaran
Patent
18
A novel coating composition and method to resist sea water corrosive wear in boiler furnace hopper bottom S panel
Mr. C.P.Ravichandran
Dr. A.Raja
Mr. T.S.Sekar
Patent
19
A process of gas metal arc welding with cold wire addition and an apparatus for the same
Mr. M.Ramakrishnan
Patent
20
A device for defect sizing by ultrasonic testing of spot weld
Mr. S.Gunasekar
Mr. N.Dhanasekaran
Dr. S.Suresh
Patent
21
Advanced method of root welding for pressure part application in power plant
Mr. Dileep Kumar Gupta
Dr. A.Raja
Mr. N.Rajasekaran
Patent
22
A method for reducing the agglomeration, sintering, shrinkage and choking formation resulting from combustion of solid fuels in fuel firing systems
Mr. A.Lawrence
Mr. S.Sundararajan
Mr. M.Muthukrishnan
Mr. S.V.Srinivasan
Mr. B.Ravikumar
Mr. V.Illayaperumal
Mr. C.Chandrabose
Mr. R.Ravi
Patent
23
A method of cleaning and passivation of ferrous metal surfaces of supercritical boilers
Mr. R.Sivasubramanian
Dr. A.Lawrence
Mr. V.Illayaperumal
Mr. C.Chandrabose
Mr. R.Ravi
Dr. K.P.Dhandapani
Patent

List of patents submitted by WRI & Labs for the year 2010-11

SL. NO.
TITLE
INVENTOR
IPR TYPE
1
Narrow gap submerged arc welding for boiler drum long seam welding using cold wire addition technique
Mr. M.Ramakrishnan
Dr. K.Padmanabhan
Patent
2
A novel flux composition to obtain deep penetration during flux assisted TIG welding of stainless steel
Mr. C.P.Ravichandran
Patent
3
A method for metallurgical evaluation of indentation creep  samples
Dr. R.Nagalakshmi
Mr. S.Manimozhi
Patent
4
A methodology for application of known stress during stress corrosion evaluation
Dr. R.Nagalakshmi
Dr. N.Raju
Mr. A.Rathinam
Patent
5
A testing facility for conducting formability (Erichsen) test on seam welded sheets
Mr. A.Rathinam
Dr. G.Ravichandran
Dr. S.Suresh
Patent
6
Analysis of stress date using various failure theories
Dr. G.Ravichandran
Copyright
7
Design of non-tubular welded connections as per AWS D 1.1 code
Dr. G.Ravichandran
Copyright
8
A process of forward and backward feeding of cold wire addition technique in submerged arc welding and an apparatus for the same
Mr. M.Ramakrishnan
Dr. S.Manoharan
Patent
9
A device and process there-of for measurement of angular dynamic distortion with strain gauge as sensor during welding
Dr. N.Raju
Dr. S.Suresh
Mr. V.Sudaharsanam
Patent
10
A process for friction welding of carbon steel valve body to yoke butt joint
Mr. M.Ramakrishnan
Dr. S.Manoharan
Patent
11
A device and process for machining the weld notch of pellini drop weight test specimen using abrasive jet machining technique
Mr. V.Sudharsanam
Mr. R.Vetriselvan
Dr. N.Raju
Patent
12
A device to assess the capability of NDT test method
Mr. N.Dhanasekaran
Dr. S.Suresh
Patent
13
Method of generating of Thermo-EMF in resistance hot staking process
Dr. S.Manoharan
Mr. V.R. Samuel
Dr. K.Asokkumar
Patent
14
Drum suspension rod fabrication using narrow gap submerged arc welding
Mr. M.Ramakrishnan
Dr. S.Manoharan
Patent
15
A novel method for the hold plugging in friction stir welding
Dr. K.Asokkumar
Dr. S.Manoharan
Mr. Lucky Gaur
Mr. Dileep K. Gupta
Patent
16
A novel automatic welding system for welding of irregular shaped bifurcate components of power boiler
Dr. A.Raja
Mr. N.Rajasekaran
Dr. S.Asokkumar
Mr. Dileep K Gupta
Mr. Lucky Gaur
Patent
17
Development of integrated consultant management system
Mrs. A.Santhakumari
Mr. N.Rajasekaran
Mr. R.Srinivasan
Copy Right
18
Mew welding method to high temperature and high pressure pipe application
Dr. A.Raja
Mr. N.Rajasekaran
Mr. P.V.Durga Ramesh
Mrs. A.Santhakumari
Mr.Shanmugasundaram
Patent
19
A method to optically determine the stress developed in pressure parts and heat exchangers
Dr. S.Dharmalingam
Mr.  K.Karthikayan
Patent
20
A method to optically determine the heat exchanger metal temperature
Dr. S.Dharmalingam
Mr. K.Karthikayan
Patent

List of patents submitted by WRI & Labs for the year 2012-13

SL. NO.
TITLE
INVENTOR
IPR TYPE
1
An Inspection Device and a technique there-of for checking compartmental openings of wind box of Once-Through Supercritical Boilers.
Mr. V.Sudharsanam
Patent
2
Fixture for Friction Stir Welding  of 660MW Palm to Blanking Plate Bus Duct Component
Mr. Sushant Sharma
Patent
3
Design of tubular structures as per AWS D1.1 code and 2.
Dr. G.Ravichandran
Copyright
4
Design of Titanium Alloy Structures as per AWS D 1.9 code
Dr. G.Ravichandran
Copyright

List of patents submitted by WRI & Labs for the year 2014-15

SL. NO.
TITLE
INVENTOR
IPR TYPE
1
A Method of Weld Sequencing and A Technique There-Of to Minimise Welding Induced Distortion in Boiler Headers

R. Vetriselvan,

  S. Surendran
Patent
2
A Calibration System for High Temperature Strain Gauges

R. Vetriselvan,
 Dr. N. Raju,
 R. Ravibharath

G. Archana

Patent
3
Automated Hot Wire Gas Tungsten Arc Welding of Feed Water Pump
Dr. K. Devakumaran
Patent
4

A Method and Device for Measurement of Axis Shift Distortion of Large Cylindrical Shells during Welding” authored by and N.Raju was submitted for filing.

R. Vetriselvan
Dr N Raju

Patent

List of patents submitted by WRI & Labs for the year 2014-15

SL. NO.
TITLE
INVENTOR
IPR TYPE
1
Welding Requirements as per Sheet Metal Code AWS D1.3

Dr. G. Ravichandran

Copyright
2
Development of Alternate Acceptance Criteria as per API 1104 Standard

 

Dr. G. Ravichandran

Copyright
3
A Method and a Technique There-of to Control Welding Induced Distortion in Thin Panel Type of Structures with Discretely Located Attachment Welds Placed on Single Side”
V. Sudharsanam
Dr N. Raju
Dr S. Suresh
Patent
4
A Novel Method of Delivering Active Flux to the Welding Arc During Flux-Assisted Gas Tungsten Arc Welding Process to Enhance Penetration”  
D. K. Verma
Patent