Patents

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1.Method of building truly fused 1x4 couplers with wide band spectral performance, low polarisation sensitivity and high impact resistance couplers build therefore

India Patent Number: 261028
Grant Date: 30th May 2014, India.
Inventors: K. R. Suresh Nair, Samuel Varghese, Muhammed Iqbal, Yoshita Koshiba.
A method for making truly fused lx4 coupler with ultra broadband spectral performance, and low polarization sensitivity, where only the primary fiber is pre- processed and four fibers are braided together to get a symmetric coupling from primary fiber to each secondary fiber and there is no mutual coupling between secondary fibers, is disclosed. Method of making the product impact resistant and thermally stable, for outdoor applications, is also claimed. lx4 Wavelength Independent Couplers are of particular interest. Suresh has led the team in an industry to convert a theoretical idea to a commercial product and could sell over 1 Million such devices that too around 100K in Japanese market for Fiber To The Home applications. Please see Annexure 9.

2.System for an internal rotating storage spool combined with top and bottom cable access in a fiber distribution terminal

US Patent number: 8437596
Issued: May 7, 2013
Inventors: K. R. Suresh Nair, Kizakkekuttu Parameswaran Chandran, Muhammed Iqbal, Biji Mathew, Mathew Anjilivelil Thomas, Aniz Muhammad
Abstract: A fiber distribution terminal for use in an environmentally sealed enclosure can include a rotatable spool for housing input fiber cable. The spool is configured to be mounted in the environmentally sealed enclosure. The fiber distribution terminal can also include an adapter pack that secures the connections between fibers of the input fiber cable and fibers of the output fiber cable. The fiber distribution terminal can include an adapter plate that guides the routing of both the input and output fiber cables internal to the enclosure. The fiber distribution terminal can also include a spool lock that can direct the cable routing to a first side or a second side of the fiber distribution terminal. This invention has led to realise commercial product with better features and performance in global market while competing with giants. The products based on this invention are regularly manufactured at NeST facilities and supplied to Verizon and other service providers. Suresh made sure that continuous improvements are done, more features are added to remain in the market.

3.Compact high density central office fiber distribution system

US Patent number: 8081858
Issued: December 20, 2011
Inventors: K. R. Suresh Nair, Kizakkekuttu Parameswaran Chandran, Benoy Sarasan, Kapplingattu Narayanan Pradeep, Aniz Muhammad
Abstract: A fiber distribution system having a rack mounted chassis and a fiber distribution rack to mount in the chassis. The system includes one or more splitter modules which are designed to be mounted in the fiber distribution rack. The splitter modules have a compact design and contain a plurality of fiber splitters. The fiber distribution system also contains a cable guide tray for supporting the fiber cables and the system includes a plurality of radius limiters to minimize cable bends. This is an improvement on one of the patent filed by Suresh and team. These continuous improvements helped remain in the industry.

4.System for rotating storage spool combined with top and bottom cable access in a fiber distribution terminal

US Patent number: 8081857
Issued: December 20, 2011
Inventors: K. R. Suresh Nair, Kizakkekuttu Parameswaran Chandran, Muhammed Iqbal, Biji Mathew, Mathew Anjilivelil Thomas, Aniz Muhammad
Abstract: A spool contained in an enclosure is a spool for housing input fiber cable. The spool is capable of rotation within the housing. An adapter pack insures that the connections between fibers of the input fiber cable and fibers of the output fiber cable are secure and organized. The fiber distribution terminal also includes a spool lock as part of the internal components of the enclosure. The spool lock is engaged to direct the cable routing to a first side or a second side of the fiber distribution terminal. This patent has enabled to come up with innovative fiber distribution terminal and thus acquiring good market in FTTH. With this, the company got introduction as Vendor to Verizon. Suresh’s ambition to compete in global market with very limited resources realised. The total revenue based out of this patent and subsequent improvements have brought in a revenue of more than 100 Million USD.

5.Compact high density central office fiber distribution system

US Patent number: 7889962
Issued: February 15, 2011
Inventors: K. R. Suresh Nair, Kizakkekuttu Parameswaran Chandran, Benoy Sarasan, Kapplingattu Narayanan Pradeep, Aniz Muhammad
Abstract: The system includes one or more splitter modules which are designed to be mounted in the fiber distribution rack. The system also includes a plurality of spools, which are located on opposite sides on the rack mounted chassis, and used to support the routing of fibers. The spools are configured to equally share the fiber load coupled to a fiber distribution rack between a pair of spools. There were patents in this area and to come up with global commercial product, Suresh led a team to come up with alternate mechanism. The products out of this patent was supplied mainly to Telcel, Mexico.

6.Fiber Optic Collector and Terminal Assemblies

US Patent number: 20130129295
Issued: May 23, 2013
Inventors: Biji Mathew Arakkakudy, Mukund Muraleedharan, Sudhakaran K. Sanith, Kizhakkekuttu Parameswaran Chandran, K.R. Suresh Nair
Abstract: A fiber optic collector and terminal assembly (CTA) can include a multi-fiber optic cable having a tail portion and first and second multi-fiber branches optically coupled to the tail portion. The first and second multi-fiber optic branches each have fewer fibers than the tail portion. The CTA also includes a plurality of single-fiber optic jumpers optically coupled to the first multi-fiber optic branch. Additionally, the CTA includes an adapter for securing a connection between a fiber of one of the plurality of single-fiber optic jumpers and a fiber of a single-fiber optic drop. This invention is another step towards a subsystem in FTTH network. This product is having good commercial requirement.

7.Cable Carrier Device

US Patent number: 20130058615
Issued: April 12, 2012
Inventors: Ajilivelil Thomas MATHEW, Kizhakkekuttu Parameswaran Chandran, Biji Mathew Arakkakudy, Sudhakaran K. Sanith, K.R. Suresh Nair
Abstract: A carrier device for advancing a fiber optic cable having a connector on one end of the fiber optic cable through a conduit includes a first carrier member and a second carrier member configured to be selectively coupled to the first carrier member. The first carrier member defines a first hollow portion with a first width and a second hollow portion with a second width. The first hollow portion is configured to receive a first portion of a connector on one end of a fiber optic cable. A connector seated in the first hollow portion is securely coupled to the carrier device. This invention is a result of a physical application during installation of FTTH network. This is being used a consumable during installation, and brings in good revenue.

8. Compact High Density Central Office Fiber Distribution System

US Patent number: 20120087627
Issued: February 15, 2011
Inventors: K.R. Suresh Nair, K.P Chandran, Benoy Sarasan, Pradeep K.N., Aniz Muhammad
Abstract: A fiber distribution system having a rack mounted chassis and a fiber distribution rack to mount in the chassis. The system includes one or more splitter modules which are designed to be mounted in the fiber distribution rack. The splitter modules have a compact design and contain a plurality of fiber splitters. The fiber distribution system also contains a cable guide tray for supporting the fiber cables and the system includes a plurality of radius limiters to minimize cable bends.

9. Fiber Distribution Terminals

US Patent number: 20120063735
Issued: March 15, 2012
Inventors: K.R. Suresh Nair, Kizakkekuttu Parameswaran Chandran, Muhammed Iqbal, Biji Mathew, Mathew Anjilivelil Thomas, Sudhakaran K. Sanith, Aniz Muhammad, Thanathalil Kumaran Subhash, Mukund Muraleedharan, Basheer A. Alikunju, Benoy Sarasan, Babu Adukalil Paily Abstract: A fiber distribution terminal (FDT) includes a base plate, a spool, and an adapter for securing a connection between a fiber of an input fiber cable and a fiber of an output fiber cable, and an adapter plate. The spool is rotatably mounted to the base plate. The spool houses the input fiber cable. The adapter plate has a cable guide defining a channel for routing the output fiber cable from the adapter. The FDT can be mounted within a pre-installed enclosure or directly to a wall.

10. System For Storage Spool Combined With Top And Bottom Cable Access In A Fiber Distribution Terminal

US Patent number: 20110176784
Issued: July 21, 2011
Inventors: K.R. Suresh NAIR, K. P. Chandran, Muhammed Iqbal, Biji Mathew, Mathew A.T., Aniz Muhammad
Abstract: A fiber distribution terminal for use in an environmentally sealed enclosure can include a rotatable spool for housing input fiber cable. The spool is configured to be mounted in the environmentally sealed enclosure. The fiber distribution terminal can also include an adapter pack that secures the connections between fibers of the input fiber cable and fibers of the output fiber cable. The fiber distribution terminal can include an adapter plate that guides the routing of both the input and output fiber cables internal to the enclosure. The fiber distribution terminal can also include a spool lock that can direct the cable routing to a first side or a second side of the fiber distribution terminal.

11. High Density Central Office Fiber Distribution System

US Patent number: 20110142406
Issued: June 16, 2011
Inventors: K.R. Suresh NAIR, K.P. Chandran, Benoy Sarasan, Pradeep K.N., Aniz Muhammad
Abstract: A fiber distribution system having a rack mounted chassis and a fiber distribution rack to mount in the chassis. The system includes one or more splitter modules which are designed to be mounted in the fiber distribution rack. The splitter modules have a compact design and contain a plurality of fiber splitters. The fiber distribution system also contains a cable guide tray for supporting the fiber cables and the system includes a plurality of radius limiters to minimize cable bends.

12. CENTRAL OFFICE FIBER DISTRIBUTION SYSTEM

US Patent number: 20100166376

Issued: July 1, 2010
Inventors: K.R. Suresh NAIR, K.P. Chandran, Benoy Sarasan, Pradeep K.N., Aniz Muhammad
Abstract: A fiber distribution system having a rack mounted chassis and a fiber distribution rack to mount in the chassis. The system includes one or more splitter modules which are designed to be mounted in the fiber distribution rack. The splitter modules have a compact design and contain a plurality of fiber splitters. The system also includes a plurality of spools, which are located on opposite sides on the rack mounted chassis, and used to support the routing of fibers. The spools are configured to equally share the fiber load coupled to a fiber distribution rack between a pair of spools. The fiber distribution system also contains a cable guide tray for supporting the fiber cables and the system includes a plurality of radius limiters to minimize cable bends.

13. SYSTEM FOR TOP AND BOTTOM CABLE ACCESS IN A FIBER DISTRIBUTION TERMINAL

US Patent number: 7889962
Issued: July 1, 2010
Inventors: K.R. Suresh NAIR, K.P. Chandran, Muhammed Iqbal, Biji Mathew, Mathew A.T., Aniz Muhammad
Abstract: A fiber distribution terminal having an environmentally sealed enclosure. A spool contained in the enclosure is a spool for housing input fiber cable. The spool is capable of rotation within the housing. An adapter pack and an adapter plate are contained in the enclosure. The adapter pack insures that the connections between fibers of the input fiber cable and fibers of the output fiber cable are secure and organized. The adapter plate guides the routing of both the input and output fiber cables internal to the enclosure. The fiber distribution terminal also includes a spool lock as part of the internal components of the enclosure. The spool lock is engaged to direct the cable routing to a first side or a second side of the fiber distribution terminal.

14. A diffuse Reflectance spectral ratio based optical biopsy system for clinical diagnostics.

India Patent Application No. 3518/CHE/2014
Inventors: K.R.Suresh Nair, Neeba Abraham, Subhash Narayanan, Abhishek J Perekkat.
This invention is on a compact design of light engine for diffused reflectance device. The product is now being developed, and this patent will support its commercial deployment. It is expected that within next 4 years, a business revenue of 25-30 Million USD shall be realised.

15. Fiber Distribution Hubs

US Patent number: US2012/023509/EP20120707958
Publication date: Aug 09, 2012
Inventors: K.R.Suresh Nair, Chandran K. P.,Thomas Mathew, Biji Mathew, Benoy, Kiran Kumar,Reagen Randy.
Abstract: A fiber distribution hub (FDH) can include an enclosure defining an interior region and a frame body having a longitudinal axis. The frame body is rotatably mounted within the interior region of the enclosure such that the frame body can rotate about the longitudinal axis relative to the enclosure. The FDH further includes a plurality of splitters coupled to the frame body. Each splitter module has at least one splitter input and at least two splitter outputs. The FDH also includes a first plurality of adapters coupled to the frame body. The first plurality of adapters is configured to optically couple to splitter output cables. Additionally, the FDH can also include a storage retaining structure coupled to the frame body, the storage retaining structure being configured to selectively secure connectorized ends of splitter output cables.