Patents by Inventor Sandeep K. Chauhan
Sandeep K. Chauhan 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).
-
Patent number: 11813167Abstract: A femoral implant for articulation with a patella or a patellar implant includes a body having an articular surface defining a trochlear groove. The trochlear groove is defined by a first trochlear radius at a first location along the trochlear groove and by a second trochlear radius at a second location along the trochlear groove, the first radius being different than the second radius. The configuration of the trochlear groove is such that it narrows as a patella or patellar implant moves from an extension configuration to a flexion configuration. A kit includes the femoral implant along with a patellar implant. A method of trialing involves use of the femoral implant or kit to ensure a smooth transition of the patella or the patellar implant from the femoral component to the adjacent bone.Type: GrantFiled: May 15, 2018Date of Patent: November 14, 2023Assignee: Howmedica Osteonics Corp.Inventors: Peter Wellings, Sandeep K. Chauhan, Michael C. Ferko
-
Patent number: 11038686Abstract: In an embodiment of the present disclosure, a biometric identification device comprises a conversion engine configured to receive a key file, receive a biometric file, wherein the biometric file is different from the key file and comprises biometric identification information of a user, convert the key file into a first numeric representation, and convert the biometric file into a second numeric representation. The biometric identification device further comprises a hashing engine configured to create a superimposed numeric representation by performing a convolution operation on the first numeric representation and the second numeric representation, convert the superimposed numeric representation into a hash value, and store the hash value.Type: GrantFiled: September 20, 2019Date of Patent: June 15, 2021Assignee: Bank of America CorporationInventors: Pinak Chakraborty, Sandeep K. Chauhan
-
Patent number: 11038880Abstract: In an embodiment of the present disclosure, an embodiment includes a user device comprises a conversion engine configured to receive a biometric file comprising biometric identification information of a user and convert the biometric file into a first numeric representation. The user device further comprises a hashing engine configured to create a superimposed numeric representation by performing a convolution operation on the first numeric representation and a second numeric representation, wherein the second numeric representation is based on a key file that is different from the biometric file. The hashing engine is further configured to convert the superimposed numeric representation into a hash value, send, over a network connection, the hash value for authentication, and receive a message indicating whether authentication was successful.Type: GrantFiled: September 20, 2019Date of Patent: June 15, 2021Assignee: Bank of America CorporationInventors: Pinak Chakraborty, Sandeep K. Chauhan
-
Publication number: 20200021442Abstract: In an embodiment of the present disclosure, a biometric identification device comprises a conversion engine configured to receive a key file, receive a biometric file, wherein the biometric file is different from the key file and comprises biometric identification information of a user, convert the key file into a first numeric representation, and convert the biometric file into a second numeric representation. The biometric identification device further comprises a hashing engine configured to create a superimposed numeric representation by performing a convolution operation on the first numeric representation and the second numeric representation, convert the superimposed numeric representation into a hash value, and store the hash value.Type: ApplicationFiled: September 20, 2019Publication date: January 16, 2020Inventors: Pinak Chakraborty, Sandeep K. Chauhan
-
Publication number: 20200014684Abstract: In an embodiment of the present disclosure, an embodiment includes a user device comprises a conversion engine configured to receive a biometric file comprising biometric identification information of a user and convert the biometric file into a first numeric representation. The user device further comprises a hashing engine configured to create a superimposed numeric representation by performing a convolution operation on the first numeric representation and a second numeric representation, wherein the second numeric representation is based on a key file that is different from the biometric file. The hashing engine is further configured to convert the superimposed numeric representation into a hash value, send, over a network connection, the hash value for authentication, and receive a message indicating whether authentication was successful.Type: ApplicationFiled: September 20, 2019Publication date: January 9, 2020Inventors: Pinak Chakraborty, Sandeep K. Chauhan
-
Patent number: 10425408Abstract: In an embodiment of the present disclosure, an embodiment includes a user device comprises a conversion engine configured to receive a biometric file comprising biometric identification information of a user and convert the biometric file into a first numeric representation. The user device further comprises a hashing engine configured to create a superimposed numeric representation by performing a convolution operation on the first numeric representation and a second numeric representation, wherein the second numeric representation is based on a key file that is different from the biometric file. The hashing engine is further configured to convert the superimposed numeric representation into a hash value, send, over a network connection, the hash value for authentication, and receive a message indicating whether authentication was successful.Type: GrantFiled: September 7, 2016Date of Patent: September 24, 2019Assignee: Bank of America CorporationInventors: Pinak Chakraborty, Sandeep K. Chauhan
-
Patent number: 10425232Abstract: In an embodiment of the present disclosure, a biometric identification device comprises a conversion engine configured to receive a key file, receive a biometric file, wherein the biometric file is different from the key file and comprises biometric identification information of a user, convert the key file into a first numeric representation, and convert the biometric file into a second numeric representation. The biometric identification device further comprises a hashing engine configured to create a superimposed numeric representation by performing a convolution operation on the first numeric representation and the second numeric representation, convert the superimposed numeric representation into a hash value, and store the hash value.Type: GrantFiled: September 7, 2016Date of Patent: September 24, 2019Assignee: Bank of America CorporationInventors: Pinak Chakraborty, Sandeep K. Chauhan
-
Publication number: 20180325685Abstract: A femoral implant for articulation with a patella or a patellar implant includes a body having an articular surface defining a trochlear groove. The trochlear groove is defined by a first trochlear radius at a first location along the trochlear groove and by a second trochlear radius at a second location along the trochlear groove, the first radius being different than the second radius. The configuration of the trochlear groove is such that it narrows as a patella or patellar implant moves from an extension configuration to a flexion configuration. A kit includes the femoral implant along with a patellar implant. A method of trialing involves use of the femoral implant or kit to ensure a smooth transition of the patella or the patellar implant from the femoral component to the adjacent bone.Type: ApplicationFiled: May 15, 2018Publication date: November 15, 2018Inventors: Peter Wellings, Sandeep K. Chauhan, Michael C. Ferko
-
Publication number: 20180069703Abstract: In an embodiment of the present disclosure, a biometric identification device comprises a conversion engine configured to receive a key file, receive a biometric file, wherein the biometric file is different from the key file and comprises biometric identification information of a user, convert the key file into a first numeric representation, and convert the biometric file into a second numeric representation. The biometric identification device further comprises a hashing engine configured to create a superimposed numeric representation by performing a convolution operation on the first numeric representation and the second numeric representation, convert the superimposed numeric representation into a hash value, and store the hash value.Type: ApplicationFiled: September 7, 2016Publication date: March 8, 2018Inventors: Pinak Chakraborty, Sandeep K. Chauhan
-
Publication number: 20180069854Abstract: In an embodiment of the present disclosure, an embodiment includes a user device comprises a conversion engine configured to receive a biometric file comprising biometric identification information of a user and convert the biometric file into a first numeric representation. The user device further comprises a hashing engine configured to create a superimposed numeric representation by performing a convolution operation on the first numeric representation and a second numeric representation, wherein the second numeric representation is based on a key file that is different from the biometric file. The hashing engine is further configured to convert the superimposed numeric representation into a hash value, send, over a network connection, the hash value for authentication, and receive a message indicating whether authentication was successful.Type: ApplicationFiled: September 7, 2016Publication date: March 8, 2018Inventors: Pinak Chakraborty, Sandeep K. Chauhan
-
Patent number: 8435247Abstract: An improved resection guide and method using same are disclosed. The guide is preferably utilized in resecting the tibia during either a single or double unicondylar type procedure. Preferably, the guide allows for linked resection of the tibia while also being capable of conforming to many different patient sizes. This may also allow for a more precise resection to be accomplished.Type: GrantFiled: August 24, 2010Date of Patent: May 7, 2013Assignee: Howmedica Osteonics Corp.Inventors: Alex F. Canonaco, Sandeep K. Chauhan
-
Patent number: 8075566Abstract: A multi-piece knee resection instrument for use in forming an anterior cut, an anterior chamfer cut, a posterior cut and a posterior chamfer cut on a distal femur which has already had a distal surface thereof resected which cuts are for the mounting of a prosthetic implant, has a first resection guide for attachment to the medial or lateral side of the distal femur. The first resection guide has a first surface facing generally anteriorly when mounted and a second surface extending distally from the first surface and angled thereto and a third surface extending generally parallel to the resected distal surface of the femur. A second resection guide is mounted on the first and second surfaces of the first resection guide for performing the anterior and anterior chamfer cuts. A third resection guide is mounted on the third surface of the first resection guide and extends in a medial-lateral direction therefrom across at least part of the resected distal femoral surface.Type: GrantFiled: October 16, 2006Date of Patent: December 13, 2011Assignee: Howmedica Osteonics Corp.Inventors: Alex F. Canonaco, Michael J. Cusick, Sandeep K. Chauhan
-
Patent number: 7998142Abstract: A multi-piece knee resection instrument for use in forming an anterior cut, an anterior chamfer cut, a posterior cut and a posterior chamfer cut on a distal femur which has already had a distal surface thereof resected which cuts are for the mounting of a prosthetic implant, has a first resection guide for attachment to the medial or lateral side of the distal femur. The first resection guide has a first surface facing generally anteriorly when mounted and a second surface extending distally from the first surface and angled thereto and a third surface extending generally parallel to the resected distal surface of the femur. A second resection guide is mounted on the first and second surfaces of the first resection guide for performing the anterior and anterior chamfer cuts. A third resection guide is mounted on the third surface of the first resection guide and extends in a medial-lateral direction therefrom across at least part of the resected distal femoral surface.Type: GrantFiled: January 12, 2007Date of Patent: August 16, 2011Assignee: Howmedica Osteonics Corp.Inventors: Alex F. Canonaco, Michael J. Cusick, Sandeep K. Chauhan
-
Publication number: 20100318090Abstract: An improved resection guide and method using same are disclosed. The guide is preferably utilized in resecting the tibia during either a single or double unicondylar type procedure. Preferably, the guide allows for linked resection of the tibia while also being capable of conforming to many different patient sizes. This may also allow for a more precise resection to be accomplished.Type: ApplicationFiled: August 24, 2010Publication date: December 16, 2010Applicant: HOWMEDICA OSTEONICS CORP.Inventors: Alex F. Canonaco, Sandeep K. Chauhan
-
Patent number: 7758651Abstract: Instruments and a method for preparing the articular surface of the patella to receive a patellar implant are utilized without everting the patella. A medial or lateral parapatellar incision and an anterior midline incision are made adjacent the patella. The patella is clamped with a patella clamp, a hole is drilled from the anterior surface of the patella. A reamer is inserted through the medial or lateral parapatellar incision and is then attached to the end of a drive shaft that extends outwardly beyond the articular surface of the patella. The posterior facing cutting surface of the reamer device is then placed in contact with the articular surface. The drive shaft is then rotated and moved anteriorly causing the cutting surface of the reamer device to remove a desired amount of patellar cartilage and bone to accommodate a patellar component.Type: GrantFiled: October 18, 2006Date of Patent: July 20, 2010Assignee: Howmedica Osteonics Corp.Inventors: Sandeep K. Chauhan, Carlos E. Collazo, Jerry D'Alessio, II, Philip F. Williams, III
-
Publication number: 20100160915Abstract: Instruments and a method for preparing the articular surface of the patella to receive a patellar implant are utilized without everting the patella. A medial or lateral parapatellar incision and an anterior midline incision are made adjacent the patella. The patella is clamped with a patella clamp, a hole is drilled from the anterior surface of the patella. A reamer is inserted through the medial or lateral parapatellar incision and is then attached to the end of a drive shaft that extends outwardly beyond the articular surface of the patella. The posterior facing cutting surface of the reamer device is then placed in contact with the articular surface. The drive shaft is then rotated and moved anteriorly causing the cutting surface of the reamer device to remove a desired amount of patellar cartilage and bone to accommodate a patellar component.Type: ApplicationFiled: March 2, 2010Publication date: June 24, 2010Applicant: HOWMEDICA OSTEONICS CORP.Inventors: Sandeep K. Chauhan, Carlos E. Collazo, Jerry D'Alessio, II, Philip F. Williams, III
-
Publication number: 20080183176Abstract: An improved resection guide and method using same are disclosed. The guide is preferably utilized in resecting the tibia during either a single or double unicondylar type procedure. Preferably, the guide allows for linked resection of the tibia while also being capable of conforming to many different patient sizes. This may also allow for a more precise resection to be accomplished.Type: ApplicationFiled: January 26, 2007Publication date: July 31, 2008Applicant: Howmedica Osteonics Corp.Inventors: Alex F. Canonaco, Sandeep K. Chauhan
-
Publication number: 20080177394Abstract: Instruments and a method for preparing the articular surface of the patella to receive a patellar implant are utilized without everting the patella. A medial or lateral parapatellar incision and an anterior midline incision are made adjacent the patella. The patella is clamped with a patella clamp, a hole is drilled from the anterior surface of the patella. A reamer is inserted through the medial or lateral parapatellar incision and is then attached to the end of a drive shaft that extends outwardly beyond the articular surface of the patella. The posterior facing cutting surface of the reamer device is then placed in contact with the articular surface. The drive shaft is then rotated and moved anteriorly causing the cutting surface of the reamer device to remove a desired amount of patellar cartilage and bone to accommodate a patellar component.Type: ApplicationFiled: October 18, 2006Publication date: July 24, 2008Applicant: Howmedica Osteonics Corp.Inventor: Sandeep K. Chauhan
-
Patent number: 7182767Abstract: A multi-piece knee resection instrument for use in forming an anterior cut, an anterior chamfer cut, a posterior cut and a posterior chamfer cut on a distal femur which has already had a distal surface thereof resected which cuts are for the mounting of a prosthetic implant, has a first resection guide for attachment to the medial or lateral side of the distal femur. The first resection guide has a first surface facing generally anteriorly when mounted and a second surface extending distally from the first surface and angled thereto and a third surface extending generally parallel to the resected distal surface of the femur. A second resection guide is mounted on the first and second surfaces of the first resection guide for performing the anterior and anterior chamfer cuts. A third resection guide is mounted on the third surface of the first resection guide and extends in a medial-lateral direction therefrom across at least part of the resected distal femoral surface.Type: GrantFiled: May 19, 2004Date of Patent: February 27, 2007Assignee: Howmedica Osteonics Corp.Inventors: Alex F. Canonaco, Michael J. Cusick, Sandeep K. Chauhan