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Patent Assignment Assignor Details
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Assignor Name : LISZKA, JASON
Total Assignments: 13
Assignment: 1
Reel/Frame:046253/0820   Pages: 17
Recorded: 07/02/2018
Attorney Dkt #:04782.0001USC4
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WEISS, NOAH
Exec Dt:
07/09/2012
2
WALKER, TRISTAN
Exec Dt:
08/16/2012
3
LISZKA, JASON
Exec Dt:
07/09/2012
4
JULIEN, TIM
Exec Dt:
07/09/2012
5
LEE, BENJAMIN N.
Exec Dt:
07/17/2012
6
SKLAR, MAX ELLIOT
Exec Dt:
07/12/2012
7
SHAW, BLAKE
Exec Dt:
07/12/2012
Assignee
1
FOURSQUARE LABS, INC.
568 BROADWAY, 10TH FLOOR
NEW YORK, NEW YORK 10012
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10872352
US20170004535
15206494
Correspondence name and address
MERCHANT & GOULD P.C.
P.O. BOX 2903
MINNEAPOLIS, MN 55402-0903
Assignment: 2
Reel/Frame:057352/0262   Pages: 30
Recorded: 08/30/2021
Attorney Dkt #:?FOU-0001-02-US-CON-05
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WALKER, TRISTAN
Exec Dt:
08/16/2012
2
WEISS, NOAH
Exec Dt:
07/09/2012
3
LISZKA, JASON
Exec Dt:
07/09/2012
4
JULIEN, TIM
Exec Dt:
07/09/2012
5
LEE, BENJAMIN N.
Exec Dt:
07/17/2012
6
SKLAR, MAX ELLIOT
Exec Dt:
07/12/2012
7
SHAW, BLAKE
Exec Dt:
07/12/2012
8
MOORE, JUSTIN
Exec Dt:
04/13/2010
Assignee
1
FOURSQUARE LABS, INC.
50 W 23RD STREET, 8TH FLOOR
NEW YORK, NEW YORK 10010
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20210357978
17128679
Correspondence name and address
FAEGRE DRINKER BIDDLE & REATH LLP (DC)
1500 K STREET, N.W.
WASHINGTON, DC 20005-1209
Assignment: 3
Reel/Frame:033712/0869   Pages: 13
Recorded: 09/10/2014
Attorney Dkt #:F2042-700310
Conveyance: CORRECTIVE ASSIGNMENT TO ADD THE 7TH INVENTOR NAME PREVIOUSLY RECORDED AT REEL: 031780 FRAME: 0367. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
MAIER, ZACHARY PAUL
Exec Dt:
07/29/2013
2
POSWOLSKY, ADAM BRETT
Exec Dt:
07/25/2013
3
SNYDER, SCOTT
Exec Dt:
07/26/2013
4
FOLKERT, NATHANIEL KEITH
Exec Dt:
07/25/2013
5
WEISS, NOAH
Exec Dt:
07/25/2013
6
LISZKA, JASON
Exec Dt:
07/29/2013
7
JULIEN, TIMOTHY
Exec Dt:
08/06/2013
Assignee
1
FOURSQUARE LABS, INC.
568 BROADWAY
10TH FLOOR
NEW YORK, NEW YORK 10012
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140162694
13949816
Correspondence name and address
LANDO & ANASTASI LLP
RIVERFRONT OFFICE PARK
ONE MAIN STREET
CAMBRIDGE, MA 02142
Assignment: 4
Reel/Frame:034173/0396   Pages: 10
Recorded: 11/14/2014
Attorney Dkt #:04782.0006USU1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WEISS, NOAH
Exec Dt:
07/25/2013
2
LISZKA, JASON
Exec Dt:
07/29/2013
3
FAVREAU-LESSARD, SIMON
Exec Dt:
07/25/2013
4
HARRISON, DANIEL
Exec Dt:
07/30/2013
5
LEU, TUDOR
Exec Dt:
08/05/2013
6
JULIEN, TIMOTHY
Exec Dt:
08/06/2013
Assignee
1
FOURSQUARE LABS, INC.
568 BROADWAY
10TH FLOOR
NEW YORK, NEW YORK 10012
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140032325
13949465
Correspondence name and address
MERCHANT & GOULD P.C.
P.O. BOX 2903
MINNEAPOLIS, MN 55402-0903
Assignment: 5
Reel/Frame:036758/0261   Pages: 20
Recorded: 10/08/2015
Attorney Dkt #:04782.0001USC3
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WEISS, NOAH
Exec Dt:
06/17/2015
2
WALKER, TRISTAN
Exec Dt:
06/19/2015
3
LISZKA, JASON
Exec Dt:
06/16/2015
4
JULIEN, TIM
Exec Dt:
06/17/2015
5
LEE, BENJAMIN N
Exec Dt:
06/17/2015
6
SKLAR, MAX ELLIOT
Exec Dt:
06/17/2015
7
SHAW, BLAKE
Exec Dt:
06/17/2015
8
MOORE, JUSTIN
Exec Dt:
04/13/2010
Assignee
1
FOURSQUARE LABS, INC.
568 BROADWAY
10TH FLOOR
NEW YORK, NEW YORK 10012
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9390145
US20150278225
14736456
Correspondence name and address
MERCHANT & GOULD P.C.
1801 CALIFORNIA STREET
SUITE 3300
DENVER, CO 80202
Assignment: 6
Reel/Frame:036221/0671   Pages: 9
Recorded: 07/30/2015
Attorney Dkt #:04782.0011US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FAVREAU-LESSARD, SIMON
Exec Dt:
07/30/2015
2
HARRISON, DANIEL
Exec Dt:
07/30/2015
3
POSWOLSKY, ADAM
Exec Dt:
07/30/2015
4
LISZKA, JASON
Exec Dt:
07/30/2015
5
STEWART, ROBERT
Exec Dt:
07/30/2015
Assignee
1
FOURSQUARE LABS, INC.
568 BROADWAY, 10TH FLOOR
NEW YORK, NEW YORK 10012
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10218798
US20170031913
14814290
Correspondence name and address
M&G FOURSQUARE
P.O. BOX 2903
MINNEAPOLIS, MN 55402
Assignment: 7
Reel/Frame:063261/0125   Pages: 9
Recorded: 04/07/2023
Attorney Dkt #:FOU-0011-01-US-CON-02
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FAVREAU-LESSARD, SIMON
Exec Dt:
07/30/2015
2
HARRISON, DANIEL
Exec Dt:
07/30/2015
3
POSWOLSKY, ADAM
Exec Dt:
07/30/2015
4
LISZKA, JASON
Exec Dt:
07/30/2015
5
STEWART, ROBERT
Exec Dt:
07/30/2015
Assignee
1
FOURSQUARE LABS, INC.
50 WEST 23RD STREET, 8TH FLOOR
NEW YORK, NEW YORK 10010
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230319152
18132146
Correspondence name and address
FAEGRE DRINKER BIDDLE & REATH
1144 15TH STREET, SUITE 3400
DENVER, CO 80202
Assignment: 8
Reel/Frame:043299/0419   Pages: 12
Recorded: 08/15/2017
Attorney Dkt #:SLACK0001US2A
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRANT, MYLES
Exec Dt:
06/19/2017
2
MOURACHOV, SERGUEI
Exec Dt:
06/27/2017
3
BOURASSA-DENIS, RENAUD
Exec Dt:
06/13/2017
4
LISZKA, JASON
Exec Dt:
06/13/2017
5
GALLAGHER, JOHN
Exec Dt:
06/13/2017
6
TROMBA, ISABELLA
Exec Dt:
06/13/2017
7
WEISS, NOAH
Exec Dt:
06/13/2017
Assignee
1
SLACK TECHNOLOGIES, INC.
155 5TH STREET, 6TH FLOOR
SAN FRANCISCO, CALIFORNIA 94103
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9940394
NONE
15651887
Correspondence name and address
HANCHUK KHEIT LLP
258 SAINT NICHOLAS AVENUE, NO. 8A
NEW YORK, NY 10027
Assignment: 9
Reel/Frame:049466/0587   Pages: 13
Recorded: 06/14/2019
Attorney Dkt #:065841/505149
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LISZKA, JASON
Exec Dt:
01/23/2018
2
GALLAGHER, JOHN
Exec Dt:
01/23/2018
3
SABO, SHAUN
Exec Dt:
05/31/2019
4
WILLS, JOSHUA
Exec Dt:
05/24/2019
5
WEISS, NOAH
Exec Dt:
01/23/2018
6
PARK, RYAN
Exec Dt:
05/24/2019
7
PACKKILDURAI, ANANTH
Exec Dt:
05/24/2019
8
BABOURINE, STANISLAV VYACHESLAVOVICH
Exec Dt:
12/06/2018
Assignee
1
SLACK TECHNOLOGIES, INC.
500 HOWARD STREET
SAN FRANCISCO, CALIFORNIA 94105
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11531645
US20190188278
15844094
Correspondence name and address
BRIAN C. ELLSWORTH
101 S. TRYON STREET
CHARLOTTE, NC 28280
Assignment: 10
Reel/Frame:044890/0568   Pages: 14
Recorded: 02/11/2018
Attorney Dkt #:SLACK0001US2A
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MOURACHOV, SERGUEI
Exec Dt:
01/31/2018
2
GRANT, MYLES
Exec Dt:
01/31/2018
3
BOURASSA-DENIS, RENAUD
Exec Dt:
01/30/2018
4
LISZKA, JASON
Exec Dt:
01/30/2018
5
GALLAGHER, JOHN
Exec Dt:
01/31/2018
6
TROMBA, ISABELLA
Exec Dt:
02/09/2018
7
WEISS, NOAH
Exec Dt:
01/31/2018
8
BUTTERFIELD, DANIEL STEWART
Exec Dt:
12/14/2017
9
HENDERSON-BEGG, CALLUM
Exec Dt:
12/14/2017
Assignee
1
SLACK TECHNOLOGIES, INC.
155 5TH STREET, 6TH FLOOR
SAN FRANCISCO, CALIFORNIA 94103
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9940394
NONE
15651887
Correspondence name and address
HANCHUK KHEIT LLP
258 SAINT NICHOLAS AVENUE, NO. 8A
NEW YORK, NY 10027
Assignment: 11
Reel/Frame:047822/0297   Pages: 14
Recorded: 12/19/2018
Attorney Dkt #:SLACK0001US2ACON1A
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MOURACHOV, SERGUEI
Exec Dt:
01/31/2018
2
GRANT, MYLES
Exec Dt:
01/31/2018
3
BOURASSA-DENIS, RENAUD
Exec Dt:
01/30/2018
4
LISZKA, JASON
Exec Dt:
01/31/2018
5
GALLAGHER, JOHN
Exec Dt:
01/31/2018
6
TROMBA, ISABELLA
Exec Dt:
02/09/2018
7
WEISS, NOAH
Exec Dt:
01/31/2018
8
BUTTERFIELD, DANIEL STEWART
Exec Dt:
12/14/2017
9
HENDERSON-BEGG, CALLUM
Exec Dt:
12/14/2017
Assignee
1
SLACK TECHNOLOGIES, INC.
155 5TH STREET, 6TH FLOOR
SAN FRANCISCO, CALIFORNIA 94103
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
10229204
NONE
15949030
 
10229205
NONE
15949034
 
10846349
NONE
15949039
Correspondence name and address
HANCHUK KHEIT LLP
258 SAINT NICHOLAS AVE. SUITE 8A
NEW YORK, NY 10027
Assignment: 12
Reel/Frame:054055/0794   Pages: 14
Recorded: 10/14/2020
Attorney Dkt #:2776-49.08
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRANT, MYLES
Exec Dt:
01/31/2018
2
MOURACHOV, SERGUEI
Exec Dt:
01/31/2018
3
BOURASSA-DENIS, RENAUD
Exec Dt:
01/30/2018
4
LISZKA, JASON
Exec Dt:
01/31/2018
5
GALLAGHER, JOHN
Exec Dt:
01/31/2018
6
TROMBA, ISABELLA
Exec Dt:
02/09/2018
7
WEISS, NOAH
Exec Dt:
01/31/2018
8
BUTTERFIELD, DANIEL STEWART
Exec Dt:
12/14/2011
9
HENDERSON-BEGG, CALLUM
Exec Dt:
12/14/2017
Assignee
1
SLACK TECHNOLOGIES, INC.
500 HOWARD STREET
SAN FRANCISCO, CALIFORNIA 94105
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11586686
US20210026903
17070651
Correspondence name and address
ERISE IP, P.A.
7015 COLLEGE BOULEVARD
SUITE 700
OVERLAND PARK, KS 66211
Assignment: 13
Reel/Frame:051769/0798   Pages: 7
Recorded: 02/10/2020
Attorney Dkt #:065841/537903
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SHORTT, MADELINE
Exec Dt:
01/31/2020
2
LISZKA, JASON
Exec Dt:
01/31/2020
3
GREENBERG, RYAN
Exec Dt:
02/07/2020
4
STULTZ, SAMANTHA
Exec Dt:
01/31/2020
Assignee
1
SLACK TECHNOLOGIES, INC.
500 HOWARD STREET
SAN FRANCISCO, CALIFORNIA 94105
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11269910
US20210240725
16778432
Correspondence name and address
ALSTON & BIRD LLP
101 S TRYON ST, SUITE 4000
BANK OF AMERICA PLAZA
CHARLOTTE, NC 28280-4000

Search Results as of: 06/20/2024 03:05 PM
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Web interface last modified: August 25, 2017 v.2.6
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