skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
Patent Assignment Assignor Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignor Name : RUHOFF, DAVID
Total Assignments: 20
Assignment: 1
Reel/Frame:011902/0033   Pages: 2
Recorded: 06/18/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DEMOS, GARY A.
Exec Dt:
03/07/2001
2
RUHOFF, DAVID
Exec Dt:
03/07/2001
Assignee
1
DEMOGRAFX
SUITE 100
3205 OCEAN PARK BOULEVARD
SANTA MONICA, CALIFORNIA 90405
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8374237
US20020154693
09798346
Correspondence name and address
FISH & RICHARDSON P.C.
KENYON S. JENCKES
SUITE 500, 4350 LA JOLLA VILLAGE DR.
SAN DIEGO, CA 92122
Assignment: 2
Reel/Frame:025663/0550   Pages: 14
Recorded: 01/19/2011
Attorney Dkt #:D08041US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUSAK, WALTER
Exec Dt:
09/11/2008
2
RUHOFF, DAVID
Exec Dt:
08/08/2008
3
TOURAPIS, ALEXANDROS
Exec Dt:
09/11/2008
4
LEONTARIS, ATHANASIOS
Exec Dt:
09/11/2008
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
100 POTRERO AVENUE
SAN FRANCISCO, CALIFORNIA 94103-4813
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10136118
US20110164112
13054855
Correspondence name and address
BIANCA MIYAKAWA
999 BRANNAN STREET
SAN FRANCISCO, CA 94103-4938
Assignment: 3
Reel/Frame:025663/0618   Pages: 14
Recorded: 01/19/2011
Attorney Dkt #:D08042US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TOURAPIS, ALEXANDROS
Exec Dt:
09/11/2008
2
HUSAK, WALTER
Exec Dt:
09/11/2008
3
LEONTARIS, ATHANASIOS
Exec Dt:
09/11/2008
4
RUHOFF, DAVID
Exec Dt:
08/08/2008
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
100 POTRERO AVENUE
SAN FRANCISCO, CALIFORNIA 94103-4813
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20110135005
13054912
Correspondence name and address
BIANCA MIYAKAWA
999 BRANNAN STREET
SAN FRANCISCO, CA 94103-4938
Assignment: 4
Reel/Frame:031218/0823   Pages: 14
Recorded: 09/17/2013
Attorney Dkt #:D08042US02/BM
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TOURAPIS, ALEXANDROS
Exec Dt:
09/11/2008
2
HUSAK, WALTER
Exec Dt:
09/11/2008
3
LEONTARIS, ATHANASIOS
Exec Dt:
09/11/2008
4
RUHOFF, DAVID
Exec Dt:
08/08/2008
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
100 POTRERO AVENUE
SAN FRANCISCO, CALIFORNIA 94103-4813
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8885721
US20140118491
14028438
Correspondence name and address
BIANCA MIYAKAWA
475 BRANNAN STREET, SUITE 300
SAN FRANCISCO, CA 94107-5420
Assignment: 5
Reel/Frame:037089/0280   Pages: 14
Recorded: 11/19/2015
Attorney Dkt #:D08041US02
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUSAK, WALTER
Exec Dt:
09/11/2008
2
RUHOFF, DAVID
Exec Dt:
08/08/2008
3
TOURAPIS, ALEXANDROS
Exec Dt:
09/11/2008
4
LEONTARIS, ATHANASIOS
Exec Dt:
09/11/2008
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
1275 MARKET STREET
SAN FRANCISCO, CALIFORNIA 94103-1410
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9712801
US20160073084
14941992
Correspondence name and address
BIANCA MIYAKAWA
1275 MARKET STREET
SAN FRANCISCO, CA 94103-1410
Assignment: 6
Reel/Frame:042747/0159   Pages: 14
Recorded: 06/19/2017
Attorney Dkt #:D08041US03
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUSAK, WALTER
Exec Dt:
09/11/2008
2
RUHOFF, DAVID
Exec Dt:
08/08/2008
3
TOURAPIS, ALEXANDROS
Exec Dt:
09/11/2008
4
LEONTARIS, ATHANASIOS
Exec Dt:
09/11/2008
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
1275 MARKET STREET
SAN FRANCISCO, CALIFORNIA 94103-1410
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9843785
US20170289520
15625854
Correspondence name and address
BIANCA MIYAKAWA
1275 MARKET STREET
SAN FRANCISCO, CA 94103-1410
Assignment: 7
Reel/Frame:042756/0176   Pages: 14
Recorded: 06/20/2017
Attorney Dkt #:D08041US03
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUSAK, WALTER
Exec Dt:
09/11/2008
2
RUHOFF, DAVID
Exec Dt:
08/08/2008
3
TOURAPIS, ALEXANDROS
Exec Dt:
09/11/2008
4
LEONTARIS, ATHANASIOS
Exec Dt:
09/11/2008
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
1275 MARKET STREET
SAN FRANCISCO, CALIFORNIA 94103
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9843785
US20170289520
15625854
Correspondence name and address
DOLBY LABORATORIES, INC.
1275 MARKET STREET
SAN FRANCISCO, CA 94103
Assignment: 8
Reel/Frame:044086/0126   Pages: 14
Recorded: 11/09/2017
Attorney Dkt #:D08041US04
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUSAK, WALTER
Exec Dt:
09/11/2008
2
RUHOFF, DAVID
Exec Dt:
08/08/2008
3
TOURAPIS, ALEXANDROS
Exec Dt:
09/11/2008
4
LEONTARIS, ATHANASIOS
Exec Dt:
09/11/2008
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
1275 MARKET STREET
SAN FRANCISCO, CALIFORNIA 94103
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9912931
US20180070071
15808675
Correspondence name and address
DOLBY LABORATORIES, INC.
1275 MARKET STREET
SAN FRANCISCO, CA 94103
Assignment: 9
Reel/Frame:044691/0846   Pages: 14
Recorded: 01/22/2018
Attorney Dkt #:D08041US05
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUSAK, WALTER
Exec Dt:
09/11/2008
2
RUHOFF, DAVID
Exec Dt:
08/08/2008
3
TOURAPIS, ALEXANDROS
Exec Dt:
09/11/2008
4
LEONTARIS, ATHANASIOS
Exec Dt:
09/11/2008
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
1275 MARKET STREET
SAN FRANCISCO, CALIFORNIA 94103
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9992476
US20180146185
15876975
Correspondence name and address
DOLBY LABORATORIES, INC.
1275 MARKET STREET
SAN FRANCISCO, CA 94103
Assignment: 10
Reel/Frame:045697/0233   Pages: 14
Recorded: 05/02/2018
Attorney Dkt #:D08041US06
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUSAK, WALTER
Exec Dt:
09/11/2008
2
RUHOFF, DAVID
Exec Dt:
08/08/2008
3
TOURAPIS, ALEXANDROS
Exec Dt:
09/11/2008
4
LEONTARIS, ATHANASIOS
Exec Dt:
09/11/2008
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
1275 MARKET STREET
SAN FRANCISCO, CALIFORNIA 94103
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10038891
NONE
15969349
Correspondence name and address
DOLBY LABORATORIES, INC.
1275 MARKET STREET
SAN FRANCISCO, CA 94103
Assignment: 11
Reel/Frame:046455/0885   Pages: 14
Recorded: 07/25/2018
Attorney Dkt #:D08041US07
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUSAK, WALTER
Exec Dt:
09/11/2008
2
RUHOFF, DAVID
Exec Dt:
08/08/2008
3
TOURAPIS, ALEXANDROS
Exec Dt:
09/11/2008
4
LEONTARIS, ATHANASIOS
Exec Dt:
09/11/2008
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
1275 MARKET STREET
SAN FRANCISCO, CALIFORNIA 94103
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10264235
US20180332269
16044836
Correspondence name and address
DOLBY LABORATORIES, INC.
1275 MARKET STREET
SAN FRANCISCO, CA 94103
Assignment: 12
Reel/Frame:048431/0220   Pages: 14
Recorded: 02/25/2019
Attorney Dkt #:D08041US08
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUSAK, WALTER
Exec Dt:
09/11/2008
2
RUHOFF, DAVID
Exec Dt:
08/08/2008
3
TOURAPIS, ALEXANDROS
Exec Dt:
09/11/2008
4
LEONTARIS, ATHANASIOS
Exec Dt:
09/11/2008
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
1275 MARKET STREET
SAN FRANCISCO, CALIFORNIA 94103
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10419739
US20190191143
16285007
Correspondence name and address
DOLBY LABORATORIES, INC.
1275 MARKET STREET
SAN FRANCISCO, CA 94103
Assignment: 13
Reel/Frame:049993/0180   Pages: 14
Recorded: 08/07/2019
Attorney Dkt #:D08041US09
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUSAK, WALTER
Exec Dt:
09/11/2008
2
RUHOFF, DAVID
Exec Dt:
08/08/2008
3
TOURAPIS, ALEXANDROS
Exec Dt:
09/11/2008
4
LEONTARIS, ATHANASIOS
Exec Dt:
09/11/2008
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
1275 MARKET STREET
SAN FRANCISCO, CALIFORNIA 94103
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10721453
US20190364260
16534716
Correspondence name and address
DOLBY LABORATORIES, INC.
1275 MARKET STREET
SAN FRANCISCO, CA 94103
Assignment: 14
Reel/Frame:053844/0124   Pages: 14
Recorded: 09/22/2020
Attorney Dkt #:D08041US10
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUSAK, WALTER
Exec Dt:
09/11/2008
2
RUHOFF, DAVID
Exec Dt:
08/08/2008
3
TOURAPIS, ALEXANDROS
Exec Dt:
09/11/2008
4
LEONTARIS, ATHANASIOS
Exec Dt:
09/11/2008
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
1275 MARKET STREET
SAN FRANCISCO, CALIFORNIA 94103-1410
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11190749
US20200314405
16903189
Correspondence name and address
DOLBY LABORATORIES, INC.
1275 MARKET STREET
SAN FRANCISCO, CA 94103-1410
Assignment: 15
Reel/Frame:029868/0142   Pages: 14
Recorded: 02/25/2013
Attorney Dkt #:D10033US01/BM
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GISH, WALTER
Exec Dt:
02/22/2011
2
LI, ZHEN
Exec Dt:
02/11/2011
3
PIAN, DONALD
Exec Dt:
02/01/2011
4
VOGT, CHRISTOPHER
Exec Dt:
02/01/2011
5
KIM, HYUNG-SUK
Exec Dt:
02/01/2011
6
RUHOFF, DAVID
Exec Dt:
01/28/2011
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
100 POTRERO AVENUE
SAN FRANCISCO, CALIFORNIA 94103-4813
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9264681
US20130148029
13818288
Correspondence name and address
BIANCA MIYAKAWA
475 BRANNAN STREET, SUITE 300
SAN FRANCISCO, CA 94107-5420
Assignment: 16
Reel/Frame:037722/0676   Pages: 14
Recorded: 02/12/2016
Attorney Dkt #:D10033US02
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GISH, WALTER C.
Exec Dt:
02/22/2011
2
LI, ZHEN
Exec Dt:
02/11/2011
3
PIAN, DONALD
Exec Dt:
02/01/2011
4
VOGT, CHRISTOPHER
Exec Dt:
02/01/2011
5
KIM, HYUNG-SUK
Exec Dt:
02/01/2011
6
RUHOFF, DAVID
Exec Dt:
01/28/2011
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
1275 MARKET STREET
SAN FRANCISCO, CALIFORNIA 94103
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10158835
US20160134853
15000782
Correspondence name and address
DOLBY LABORATORIES INC.
1275 MARKET STREET
SAN FRANCISCO, CA 94103-4813
Assignment: 17
Reel/Frame:033219/0722   Pages: 10
Recorded: 07/01/2014
Attorney Dkt #:D11088AUS01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GISH, WALTER
Exec Dt:
02/02/2012
2
VOGT, CHRISTOPHER
Exec Dt:
01/31/2012
3
RUHOFF, DAVID
Exec Dt:
01/25/2012
4
MCELVAIN, JON
Exec Dt:
01/30/2012
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
100 POTRERO AVENUE
SAN FRANCISCO, CALIFORNIA 94103-4813
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8929654
US20140348426
14369073
Correspondence name and address
BIANCA MIYAKAWA
475 BRANNAN STREET, SUITE 300
SAN FRANCISCO, CA 94107-5420
Assignment: 18
Reel/Frame:031287/0520   Pages: 14
Recorded: 09/26/2013
Attorney Dkt #:D11088BUS01/BM
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GISH, WALTER C.
Exec Dt:
12/05/2012
2
RUHOFF, DAVID
Exec Dt:
12/12/2012
3
MCELVAIN, JON S.
Exec Dt:
12/12/2012
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
100 POTRERO AVENUE
SAN FRANCISCO, CALIFORNIA 94103-4813
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8947549
US20140300752
14007633
Correspondence name and address
BIANCA MIYAKAWA
475 BRANNAN STREET, SUITE 300
SAN FRANCISCO, CA 94107-5420
Assignment: 19
Reel/Frame:033930/0076   Pages: 14
Recorded: 10/10/2014
Attorney Dkt #:D11088BUS03
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GISH, WALTER
Exec Dt:
12/05/2012
2
RUHOFF, DAVID
Exec Dt:
12/12/2012
3
MCELVAIN, JON S.
Exec Dt:
12/12/2012
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
100 POTRERO AVENUE
SAN FRANCISCO, CALIFORNIA 94103-4813
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9077942
US20150022685
14510885
Correspondence name and address
BIANCA MIYAKAWA
475 BRANNAN STREET, SUITE 300
SAN FRANCISCO, CA 94107-5420
Assignment: 20
Reel/Frame:031581/0481   Pages: 12
Recorded: 11/12/2013
Attorney Dkt #:D11088BUS02/BM
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GISH, WALTER C.
Exec Dt:
10/31/2013
2
RUHOFF, DAVID
Exec Dt:
10/30/2013
3
MCELVAIN, JON S.
Exec Dt:
10/25/2013
4
VOGT, CHRISTOPHER J.
Exec Dt:
10/24/2013
5
THURSTON, KIMBALL DARR, III
Exec Dt:
11/11/2013
Assignee
1
DOLBY LABORATORIES LICENSING CORPORATION
100 POTRERO AVENUE
SAN FRANCISCO, CALIFORNIA 94103-4813
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9479750
US20140022410
14039415
Correspondence name and address
BIANCA MIYAKAWA
475 BRANNAN STREET, SUITE 300
SAN FRANCISCO, CA 94107-5420

Search Results as of: 05/24/2024 02:00 AM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT