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Patent Assignment Assignor Details
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Assignor Name : BHATTACHARJEE, RATNADEEP
Total Assignments: 11
Assignment: 1
Reel/Frame:015344/0477   Pages: 3
Recorded: 05/17/2004
Attorney Dkt #:SUNMP499/SUN040189
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BHATTACHARJEE, RATNADEEP
Exec Dt:
05/12/2004
2
EDWARDS, WILLIAM A.
Exec Dt:
05/17/2004
Assignee
1
SUN MICROSYSTEMS, INC.
4150 NETWORK CIRCLE
SANTA CLARA, CALIFORNIA 95054
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8219609
NONE
10847780
Correspondence name and address
MARTINE & PENILLA, LLP
FEB R. CABRASAWAN
710 LAKEWAY DRIVE, SUITE 170
SUNNYVALE, CA 94085
Assignment: 2
Reel/Frame:037562/0271   Pages: 6
Recorded: 01/22/2016
Attorney Dkt #:C344.01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ENGINEER, ANU
Exec Dt:
01/20/2016
2
DIRKS, PATRICK WILLIAM PENZIAS
Exec Dt:
01/20/2016
3
BHATTACHARJEE, RATNADEEP
Exec Dt:
01/14/2016
Assignee
1
VMWARE, INC.
3401 HILLVIEW AVENUE
PALO ALTO, CALIFORNIA 94304
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9819497
US20170005808
14755508
Correspondence name and address
VMWARE, INC.
DAVID A. PLETTNER
3401 HILLVIEW AVE.
PALO ALTO, CA 94304
Assignment: 3
Reel/Frame:037563/0624   Pages: 4
Recorded: 01/22/2016
Attorney Dkt #:C344.02
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ENGINEER, ANU
Exec Dt:
01/20/2016
2
BHATTACHARJEE, RATNADEEP
Exec Dt:
01/16/2016
Assignee
1
VMWARE, INC.
3401 HILLVIEW AVENUE
PALO ALTO, CALIFORNIA 94304
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10432610
US20170006022
14755642
Correspondence name and address
VMWARE, INC.
DAVID A. PLETTNER
3401 HILLVIEW AVE.
PALO ALTO, CA 94304
Assignment: 4
Reel/Frame:051782/0769   Pages: 10
Recorded: 02/11/2020
Attorney Dkt #:065841/539977
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BREVOORT, MICHAEL
Exec Dt:
02/11/2020
2
KIRCHHOF, ANGELA
Exec Dt:
02/05/2020
3
BHATTACHARJEE, RATNADEEP
Exec Dt:
02/04/2020
4
KUPP, HELEN
Exec Dt:
02/04/2020
5
CAUDILL, MATTHEW NOLAN
Exec Dt:
02/05/2020
6
VELEZ, RAQUEL
Exec Dt:
02/04/2020
7
NEWELL, LESLIE
Exec Dt:
02/04/2020
Assignee
1
SLACK TECHNOLOGIES, INC.
500 HOWARD STREET
SAN FRANCISCO, CALIFORNIA 94105
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11082486
US20210243251
16779101
Correspondence name and address
MIRANDA M. SOOTER
101 S. TRYON STREET
CHARLOTTE, NC 28280
Assignment: 5
Reel/Frame:057057/0017   Pages: 10
Recorded: 08/02/2021
Attorney Dkt #:2776-37.01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BREVOORT, MICHAEL
Exec Dt:
02/11/2020
2
KIRCHHOF, ANGELA
Exec Dt:
02/05/2020
3
BHATTACHARJEE, RATNADEEP
Exec Dt:
02/04/2020
4
KUPP, HELEN
Exec Dt:
02/04/2020
5
CAUDILL, MATTHEW NOLAN
Exec Dt:
02/05/2020
6
VELEZ, RAQUEL
Exec Dt:
02/04/2020
7
NEWELL, LESLIE
Exec Dt:
02/04/2020
Assignee
1
SLACK TECHNOLOGIES, INC.
500 HOWARD STREET
SAN FRANCISCO, CALIFORNIA 94105
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11558453
US20210368005
17391795
Correspondence name and address
ERISE IP, P.A.
7015 COLLEGE BOULEVARD
SUITE 700
OVERLAND PARK, KS 66211
Assignment: 6
Reel/Frame:057259/0981   Pages: 10
Recorded: 08/23/2021
Attorney Dkt #:2776-37.02
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BREVOORT, MICHAEL
Exec Dt:
02/11/2020
2
KIRCHHOF, ANGELA
Exec Dt:
02/05/2020
3
BHATTACHARJEE, RATNADEEP
Exec Dt:
02/04/2020
4
KUPP, HELEN
Exec Dt:
02/04/2020
5
CAUDILL, MATTHEW NOLAN
Exec Dt:
02/05/2020
6
VELEZ, RAQUEL
Exec Dt:
02/04/2020
7
NEWELL, LESLIE
Exec Dt:
02/04/2020
Assignee
1
SLACK TECHNOLOGIES, INC.
500 HOWARD STREET
SAN FRANCISCO, CALIFORNIA 94105
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11706043
US20210385272
17409263
Correspondence name and address
ERISE IP, P.A.
7015 COLLEGE BOULEVARD
SUITE 700
OVERLAND PARK, KS 66211
Assignment: 7
Reel/Frame:055338/0792   Pages: 5
Recorded: 02/19/2021
Attorney Dkt #:2776-60.00
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BAEZ, MAX
Exec Dt:
02/18/2021
2
CHENG, CALVIN
Exec Dt:
02/18/2021
3
HAMRICK, STEPHEN
Exec Dt:
02/17/2021
4
BHATTACHARJEE, RATNADEEP
Exec Dt:
02/17/2021
5
SHEN, CAROLINE
Exec Dt:
02/17/2021
Assignee
1
SLACK TECHNOLOGIES, INC.
500 HOWARD STREET
SAN FRANCISCO, CALIFORNIA 94105
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11720706
US20220269812
17180095
Correspondence name and address
ERISE IP, P.A.
7015 COLLEGE BOULEVARD
SUITE 700
OVERLAND PARK, KS 66211
Assignment: 8
Reel/Frame:057055/0661   Pages: 5
Recorded: 08/02/2021
Attorney Dkt #:P10403USX1/S392-0093US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
BHATTACHARJEE, RATNADEEP
Exec Dt:
07/08/2021
Assignee
1
SLACK TECHNOLOGIES, INC.
500 HOWARD STREET
SAN FRANCISCO, CALIFORNIA 94105
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11539675
US20200336472
16918284
Correspondence name and address
LEE & HAYES, P.C.
601 W. RIVERSIDE AVE
SUITE 1400
SPOKANE, WA 99201
Assignment: 9
Reel/Frame:057056/0362   Pages: 4
Recorded: 08/02/2021
Attorney Dkt #:P10401USC1/S392-0092US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
BHATTACHARJEE, RATNADEEP
Exec Dt:
07/08/2021
Assignee
1
SLACK TECHNOLOGIES, INC.
500 HOWARD STREET
SAN FRANCISCO, CALIFORNIA 94105
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11949739
US20200412806
17018165
Correspondence name and address
LEE & HAYES, P.C.
601 W. RIVERSIDE AVE
SUITE 1400
SPOKANE, WA 99201
Assignment: 10
Reel/Frame:063684/0315   Pages: 14
Recorded: 05/18/2023
Attorney Dkt #:S392-0093USC1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DRUMMOND, AUDREI
Exec Dt:
06/29/2020
2
SCHEINBLUM, JAMES
Exec Dt:
06/29/2020
3
GHIRMAI, EDEN
Exec Dt:
06/30/2020
4
CROWLEY, RICHARD
Exec Dt:
06/29/2020
5
GORHAM, LYDIA
Exec Dt:
06/29/2020
6
MEHTA, POOJA
Exec Dt:
06/30/2020
7
HAMRICK, STEPHEN
Exec Dt:
06/30/2020
8
LARGMAN, RAISSA
Exec Dt:
07/13/2020
9
NGUYEN, KAREN
Exec Dt:
07/16/2020
10
BHATTACHARJEE, RATNADEEP
Exec Dt:
07/08/2021
Assignee
1
SLACK TECHNOLOGIES, INC.
500 HOWARD STREET
SAN FRANCISCO, CALIFORNIA 94105
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11757852
US20230053443
17981169
Correspondence name and address
LEE & HAYES, P.C.
601 W. RIVERSIDE AVE
STE 1400
SPOKANE, WA 99201
Assignment: 11
Reel/Frame:057660/0105   Pages: 5
Recorded: 09/30/2021
Attorney Dkt #:P10196US1/S392-0102US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MACDONALD, ANDREW
Exec Dt:
09/17/2021
2
BHATTACHARJEE, RATNADEEP
Exec Dt:
09/17/2021
3
QABAZARD, NATALIE
Exec Dt:
09/21/2021
4
KWON, OHJOONG
Exec Dt:
09/17/2021
5
MOHAN, NIKHIL
Exec Dt:
09/17/2021
6
HENKENS, SARAH
Exec Dt:
09/17/2021
7
ROSE, JEREMY APTHORP
Exec Dt:
09/17/2021
8
ATTARD, SAMUEL
Exec Dt:
09/17/2021
Assignee
1
SLACK TECHNOLOGIES, LLC
500 HOWARD STREET
SAN FRANCISCO, CALIFORNIA 94105
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11563710
NONE
17479972
Correspondence name and address
LEE & HAYES, P.C.
601 W. RIVERSIDE AVE
STE 1400
SPOKANE, WA 99201

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