公开(公告)号：GB2589760B

公开(公告)日：2022-06-22

申请号：GB202020421

申请日：2019-04-30

Applicant: IBM

Inventor： ONUR GOEKCE ,  EMMANUEL DELAMARCHE ,  EDUARDA FREIRE-STOEGBUCHNER ,  JAN CAMENISCH

IPC: H04L9/08 ,  G06Q30/00 ,  H04L9/32

Abstract: Methods are provided for producing an authenticated packaged product. The method includes providing on the product a security code encoding security data for the product, packing the product in packaging, and providing a tag carrying encrypted product data on the packaging. The product data comprises the security data for the product. The method further comprises storing a decryption key for the encrypted product data at a network server, and providing on the packaging access data for accessing the decryption key at the network server. Corresponding methods and systems are provided for verifying authenticity of such an authenticated packaged product.

公开(公告)号：GB2589760A

公开(公告)日：2021-06-09

申请号：GB202020421

申请日：2019-04-30

Applicant: IBM

Inventor： ONUR GOEKCE ,  EMMANUEL DELAMARCHE ,  EDUARDA FREIRE-STOEGBUCHNER ,  JAN CAMENISCH

IPC: G06Q30/00

Abstract: Methods are provided for producing an authenticated packaged product. The method includes providing on the product a security code encoding security data for the product, packing the product in packaging, and providing a tag carrying encrypted product data on the packaging. The product data comprises the security data for the product. The method further comprises storing a decryption key for the encrypted product data at a network server, and providing on the packaging access data for accessing the decryption key at the network server. Corresponding methods and systems are provided for verifying authenticity of such an authenticated packaged product.

公开(公告)号：GB2578977B

公开(公告)日：2021-04-21

申请号：GB202000287

申请日：2018-06-20

Applicant: IBM

Inventor： EMMANUEL DELAMARCHE ,  ONUR GOEKCE

IPC: B03B5/60 ,  B01L3/00 ,  F16K99/00

Abstract: The invention is directed to a microfluidic device. The device includes an input microchannel, a set of m distribution microchannels, a set of m microfluidic modules and a set of m nodes. The m microfluidic modules (m≥2) are in fluidic communication with the m distribution microchannels, respectively. The one or more nodes of the set of m nodes branch from the input microchannel, and further branch to a respective one of the set of m distribution microchannels. In addition, a subset, but not all, of the nodes are altered. The nodes of the set of m nodes have different liquid pinning strengths. As a result, the extent in which a liquid passes through one or more of the m microfluidic modules varies based on the different liquid pinning strengths, in operation. Additional sets of nodes may be provided to allow liquid to pass through ordered pairs of modules.

公开(公告)号：GB2555949B

公开(公告)日：2020-12-16

申请号：GB201716508

申请日：2015-06-15

Applicant: IBM

Inventor： ONUR GOEKCE ,  EMMANUEL DELAMARCHE

IPC: B01L3/00 ,  B01F13/00 ,  B01F13/10

Abstract: A microfluidic device including one or more microchannels. Each microchannel comprising: a microchannel portion with a longitudinal liquid barrier that defines first and second regions. The device includes one or more first liquid passages at the level of the longitudinal barrier. A liquid inlet allows liquid to enter the first region and a liquid outlet allows liquid to leave the microchannel portion. A transverse liquid barrier between the microchannel portion and the liquid outlet holds liquid in the first region. The device includes one or more second liquid passages at the level of the transverse liquid barrier. A liquid pump displaces liquid through a microchannel portion. The first liquid passages allow excess liquid in the first region to flow into the second region, transversally to the longitudinal barrier. The second liquid passages allow excess liquid in the longitudinal portion to be discharged via the liquid outlet.

公开(公告)号：GB2577225B

公开(公告)日：2021-08-11

申请号：GB201918101

申请日：2018-06-20

Applicant: IBM

Inventor： ONUR GOEKCE ,  EMMANUEL DELAMARCHE

IPC: B01L3/00

Abstract: A method for optically reading information encoded in a microfluidic device, the microfluidic device including an input microchannel, microfluidic modules, and sets of nodes. Nodes of a first set connect the input microchannel to one of the microfluidic modules, and nodes of a second set connect the one of the microfluidic modules to another to form an ordered pair of the microfluidic modules, where the nodes of the first and second sets have different liquid pinning strengths. A liquid loaded into the input microchannel causes an ordered passage of the liquid through each of the microfluidic modules in an order determined by the liquid pinning strengths of the nodes. The passage of the liquid produces an optically readable dynamic pattern which evolves in accordance with the ordered passage of the liquid through the device.

公开(公告)号：GB2578977A

公开(公告)日：2020-06-03

申请号：GB202000287

申请日：2018-06-20

Applicant: IBM

Inventor： EMMANUEL DELAMARCHE ,  ONUR GOEKCE

IPC: B03B5/60 ,  B01L3/00 ,  F16K99/00

Abstract: The invention is directed to a microfluidic device. The device includes an input microchannel, a set of m distribution microchannels, a set of m microfluidic modules and a set of m nodes. The m microfluidic modules (m ≥ 2) are in fluidic communication with the m distribution microchannels, respectively. The one or more nodes of the set of m nodes branch from the input microchannel, and further branch to a respective one of the set of m distribution microchannels. In addition, a subset, but not all, of the nodes are altered. The nodes of the set of m nodes have different liquid pinning strengths. As a result, the extent in which a liquid passes through one or more of the m microfluidic modules varies based on the different liquid pinning strengths, in operation. Additional sets of nodes may be provided to allow liquid to pass through ordered pairs of modules.

公开(公告)号：GB2577225A

公开(公告)日：2020-03-18

申请号：GB201918101

申请日：2018-06-20

Applicant: IBM

Inventor： ONUR GOEKCE ,  EMMANUEL DELAMARCHE

IPC: B01L3/00

Abstract: A method for optically reading information encoded in a microfluidic device, the microfluidic device including an input microchannel, microfluidic modules, and sets of nodes. Nodes of a first set connect the input microchannel to one of the microfluidic modules, and nodes of a second set connect the one of the microfluidic modules to another to form an ordered pair of the microfluidic modules, where the nodes of the first and second sets have different liquid pinning strengths. A liquid loaded into the input microchannel causes an ordered passage of the liquid through each of the microfluidic modules in an order determined by the liquid pinning strengths of the nodes. The passage of the liquid produces an optically readable dynamic pattern which evolves in accordance with the ordered passage of the liquid through the device.

公开(公告)号：GB2555949A

公开(公告)日：2018-05-16

申请号：GB201716508

申请日：2015-06-15

Applicant: IBM

Inventor： ONUR GOEKCE ,  EMMANUEL DELAMARCHE

IPC: B01L3/00 ,  B01F13/00 ,  B01F13/10

Abstract: A microfluidic device (1) comprises a set of one or more microchannels (10) each comprising: a microchannel portion (12) with a longitudinal liquid barrier (20) extending longitudinally therein, thereby defining a first region (121) and a second region (122) in the microchannel portion (12); one or more first liquid passages (22), at the level of the longitudinal barrier (20); a liquid inlet (11), configured to allow liquid to enter the first region (121); a liquid outlet (13), configured to allow liquid to leave the microchannel portion (12); a transversal liquid barrier (30) arranged between the microchannel portion (12) and the liquid outlet (13) to hold liquid flowed from the liquid inlet (11) in the first region (121), in operation; and one or more second liquid passages (32) at the level of transversal liquid barrier (30), the device further comprising liquid pumping means (15) configured to displace liquid through each microchannel portion (12) of the set of one or more microchannels (10), wherein, the one or more first liquid passages (22) are configured so as to allow, in operation, excess liquid in the first region (121) to flow into the second region (122), transversally to the longitudinal barrier (20), and the one or more second liquid passages (32) are configured so as to allow, in operation, excess liquid in the longitudinal portion (12) to be discharged via the liquid outlet (13). A method for controlling liquid in the microfluidic device (1) is also provided.