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Patent Assignment Assignor Details
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Assignor Name : SPEARMAN, MICHAEL R.
Total Assignments: 23
Assignment: 1
Reel/Frame:007026/0102   Pages: 3
Recorded: 11/12/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SPEARMAN, MICHAEL R.
Exec Dt:
07/27/1992
Assignee
1
POROUS MEDIA CORPORATION
1350 HAMMOND ROAD ST. PAUL, MN 55110
MINNESOTA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5454945
NONE
07952611
Correspondence name and address
MARSHALL & MELHORN
ATTENTION: D. EDWARD DOLGORUKOV
FOUR SEAGATE
8TH FLOOR
TOLEDO, OH 43604
Assignment: 2
Reel/Frame:006262/0133   Pages: 2
Recorded: 09/14/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
SPEARMAN, MICHAEL R.
Exec Dt:
09/08/1992
2
STENDER, ERIC C.
Exec Dt:
09/08/1992
3
SPEARMAN, PATRICK R.
Exec Dt:
09/08/1992
Assignee
1
POROUS MEDIA CORPORATION
1350 HAMMOND ROAD
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5284997
NONE
07944301
Correspondence name and address
JACOBSON AND JOHNSON
ATTN: CARL L. JOHNSON
ONE WEST WATER STREET, SUITE 202
ST. PAUL, MN 55107-2033
Assignment: 3
Reel/Frame:006607/0998   Pages: 2
Recorded: 07/15/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SPEARMAN, MICHAEL R.
Exec Dt:
04/07/1993
Assignee
1
POROUS MEDIA CORPORATION
1350 HAMMOND ROAD
ST. PAUL, MINNESOTA 55107
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5250179
NONE
07859023
Correspondence name and address
JACOBSON AND JOHNSON
CARL L. JOHNSON
SUITE 202
ONE WEST WATER STREET
ST. PAUL, MN 55107-2033
Assignment: 4
Reel/Frame:006606/0228   Pages: 3
Recorded: 06/24/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SPEARMAN, MICHAEL R.
Exec Dt:
06/18/1993
Assignee
1
POROUS MEDIA CORPORATION
1350 HAMMOND ROAD
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
D357737
NONE
29010022
Correspondence name and address
D. EDWARD DOLGORUKOV
MARSHALL & MELHORN
FOUR SEAGATE, EIGHTH FLOOR
TOLEDO, OHIO 43604
Assignment: 5
Reel/Frame:006623/0169   Pages: 3
Recorded: 06/24/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SPEARMAN, MICHAEL R.
Exec Dt:
06/18/1993
Assignee
1
POROUS MEDIA CORPORATION
1350 HAMMOND ROAD
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5376270
NONE
08083076
Correspondence name and address
D. EDWARD DOLGORUKOV
MARSHALL & MELHORN
FOUR SEAGATE, EIGHTH FLOOR
TOLEDO, OH 43604
Assignment: 6
Reel/Frame:006765/0988   Pages: 3
Recorded: 11/08/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SPEARMAN, MICHAEL R.
Exec Dt:
10/29/1993
Assignee
1
POROUS MEDIA CORPORATION
1350 HAMMOND ROAD
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5376272
NONE
08149038
Correspondence name and address
D. EDWARD DOLGORUKOV
MARSHALL & MELHORN
FOUR SEAGATE, EIGHT FLOOR
TOLEDO, OH 43604
Assignment: 7
Reel/Frame:007484/0930   Pages: 3
Recorded: 05/08/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SPEARMAN, MICHAEL R.
Exec Dt:
04/28/1995
Assignee
1
POROUS MEDIA CORPORATION
1350 HAMMOND ROAD
SAINT PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
D373637
NONE
29038534
Correspondence name and address
D. EDWARD DOLGORUKOV
MARSHALL & MELHORN
FOUR SEAGATE, EIGHTH FLOOR
TOLEDO, OHIO 43604
Assignment: 8
Reel/Frame:008411/0288   Pages: 4
Recorded: 01/27/1997
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPEARMAN, MICHAEL R.
Exec Dt:
01/23/1997
2
BROCKMAN, JOHN J.
Exec Dt:
01/24/1997
Assignee
1
POROUS MEDIA CORPORATION
1350HAMMOND ROAD
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5916435
NONE
08788988
Correspondence name and address
MARSHALL & MELHORN
D. EDWARD DOLGORUKOV
FOUR SEAGATE, EIGHTH FLOOR
TOLEDO, OH 43604
Assignment: 9
Reel/Frame:009363/0511   Pages: 4
Recorded: 08/04/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROBERTS, KEITH A.
Exec Dt:
06/06/1998
2
SPEARMAN, MICHAEL R.
Exec Dt:
06/06/1998
3
BURBAN, JOHN H.
Exec Dt:
06/06/1998
4
MICKSCHL, ROCHELLE M.
Exec Dt:
06/06/1998
5
ZIA, MAJID
Exec Dt:
06/06/1998
Assignee
1
POROUS MEDIA CORPORATION
1350 HAMMOND ROAD
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6123076
NONE
09075001
Correspondence name and address
MARSHALL & MELHORN
D. EDWARD DOLOGORUKOV
FOUR SEAGATE, 8TH FLOOR
TOLEDO, OH 43604
Assignment: 10
Reel/Frame:009295/0094   Pages: 4
Recorded: 06/29/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KHAMIS, CHAOUKI A.
Exec Dt:
06/23/1998
2
GEISZ, CARL M.
Exec Dt:
06/23/1998
3
SPEARMAN, DANIEL M.
Exec Dt:
06/23/1998
4
SPEARMAN, MICHAEL R.
Exec Dt:
06/23/1998
Assignee
1
POROUS MEDIA CORPORATION
1350 HAMMOND ROAD
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
D410727
NONE
29089961
Correspondence name and address
MARSHALL & MELHORN
EDWARD DOLGORUKOV
FOUR SEAGATE, EIGHT FLOOR
TOLEDO, OH 43604
1
Assignment: 11
Reel/Frame:009896/0628   Pages: 4
Recorded: 04/15/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPEARMAN, PATRICK R.
Exec Dt:
04/13/1999
2
SPEARMAN, MICHAEL R.
Exec Dt:
04/13/1999
3
ZIA, MAJID
Exec Dt:
04/13/1999
Assignee
1
POROUS MEDIA CORPORAITON
1350 HAMMOND ROAD
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6692639
NONE
09292494
Correspondence name and address
MARSHALL & MELHORN
D. EDWARD DOLGORUKOV
FOUR SEAGATE - EIGHT FLOOR
TOLEDO, OH 43604
Assignment: 12
Reel/Frame:011735/0568   Pages: 8
Recorded: 04/20/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ANGELO, ANTHONY J.
Exec Dt:
03/27/2001
2
SPEARMAN, MICHAEL R.
Exec Dt:
03/27/2001
3
MICKSCHL, ROCHELLE MARIE
Exec Dt:
04/06/2001
Assignee
1
POROUS MEDIA CORPORATION, A DELAWARE CORPORATION
1350 HAMMOND ROAD
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6381983
NONE
09709951
Correspondence name and address
MARSHALL & MELHORN, LLC
D. EDWARD DOLGORUKOV
FOUR SEAGATE, 8TH FLOOR
TOLEDO, OH 43604
Assignment: 13
Reel/Frame:012492/0041   Pages: 7
Recorded: 01/16/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPEARMAN, MICHAEL R.
Exec Dt:
09/26/2001
2
BURBAN, JOHN H.
Exec Dt:
09/26/2001
3
THUNDYIL, MATHEWS
Exec Dt:
09/05/2001
4
ZIA, MAJID
Exec Dt:
09/26/2001
Assignee
1
POROUS MEDIA CORPORATION
1350 HAMMOND ROAD
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6517725
US20020100726
09935098
Correspondence name and address
MARSHALL & MELHORN, LLC
D. EDWARD DOLGORUKOV
FOUR SEAGATE, 8TH FLOOR
TOLEDO, OH 43604
Assignment: 14
Reel/Frame:012455/0933   Pages: 9
Recorded: 01/09/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPEARMAN, MICHAEL R.
Exec Dt:
10/12/2001
2
KOLSTAD, DAVID
Exec Dt:
10/12/2001
3
BURBAN, JOHN H.
Exec Dt:
10/11/2001
4
CUTA, CRAIG J.
Exec Dt:
10/10/2001
5
THUNDYIL, MATHEWS
Exec Dt:
10/10/2001
6
ZIA, MAJID
Exec Dt:
10/11/2001
Assignee
1
POROUS MEDIA CORPORATION
1350 HAMMOND ROAD
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6478953
US20020063087
09727086
Correspondence name and address
MARSHALL & MELHORN, LLC
D. EDWARD DOLGORUKOV
FOUR SEAGATE - 8TH FLOOR
TOLEDO, OH 43604
Assignment: 15
Reel/Frame:012367/0886   Pages: 7
Recorded: 12/06/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BURBAN, JOHN H.
Exec Dt:
12/03/2001
2
CROWDER, ROBERT O.
Exec Dt:
12/03/2001
3
SPEARMAN, MICHAEL R.
Exec Dt:
12/04/2001
4
ROBERTS, KEITH A.
Exec Dt:
12/03/2001
Assignee
1
POROUS MEDIA CORPORATION
1350 HAMMOND ROAD
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6585808
US20020069758
10010373
Correspondence name and address
MARSHALL & MELHORN, LLC
D. EDWARD DOLGORUKOV
FOUR SEAGATE - 8TH FLOOR
TOLEDO, OH 43604
Assignment: 16
Reel/Frame:015221/0069   Pages: 3
Recorded: 04/15/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
THUNDYIL, MATTHEWS J.
Exec Dt:
12/19/2003
2
BURNS, HEATH
Exec Dt:
12/19/2003
3
MITTLESTEADT, DOUGLAS M.
Exec Dt:
12/19/2003
4
MILLER, MARTIN G.
Exec Dt:
12/19/2003
5
SPEARMAN, MICHAEL R.
Exec Dt:
12/19/2003
Assignee
1
POROUS MEDIA LTD
4301 WEST DAVIS
CONROE, TEXAS 77304
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7413657
NONE
10725959
Correspondence name and address
JACOBSON AND JOHNSON
CARL L. JOHNSON
ONE WEST WATER STREET
SUITE 285
ST. PAUL, MN 55107-2080
Assignment: 17
Reel/Frame:015341/0263   Pages: 9
Recorded: 05/17/2004
Attorney Dkt #:1-16451
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LEXION MEDICAL, LLC
Exec Dt:
01/05/2004
2
OTT FAMILY LIMITED PARTNERSHIP, THE
Exec Dt:
01/05/2004
3
SPEARMAN, MICHAEL R.
Exec Dt:
01/05/2004
4
SPEARMAN, PATRICK R.
Exec Dt:
01/05/2004
5
SPEARMAN, DANIEL M.
Exec Dt:
01/05/2004
Assignee
1
HEMERUS MEDICAL, LLC
1957 GATEWAY BLVD.
ST. PAUL, MINNESOTA 55112-2750
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
6171493
NONE
09272203
 
6427847
NONE
09688999
 
7571744
US20020120224
10066515
 
6802425
US20020148765
10164668
 
6955700
US20030046914
10194536
 
7281632
US20030111403
10306646
Correspondence name and address
MARSHALL & MELHORN, LLC
D. EDWARD DOLGORUKOV
FOUR SEAGATE, 8TH FLOOR
TOLEDO, OH 43604
Assignment: 18
Reel/Frame:019885/0469   Pages: 7
Recorded: 09/26/2007
Attorney Dkt #:077786.0103
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROBERTS, KEITH A.
Exec Dt:
09/25/2007
2
BURBAN, JOHN H.
Exec Dt:
09/24/2007
3
ZIA, MAJID (NMI)
Exec Dt:
09/24/2007
4
SPEARMAN, MICHAEL R.
Exec Dt:
09/25/2007
Assignee
1
HEMOSTASIS, LLC
5000 TOWNSHIP PARKWAY
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8623842
US20080076722
11861719
Correspondence name and address
DAVID G. WILLE
2001 ROSS AVENUE, BAKER BOTTS
SUITE 600
DALLAS, TX 75201
Assignment: 19
Reel/Frame:025895/0665   Pages: 5
Recorded: 03/03/2011
Attorney Dkt #:1-20026
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPEARMAN, MICHAEL R.
Exec Dt:
02/17/2011
2
SPEARMAN, BRIAN M.
Exec Dt:
02/17/2011
3
HOLLNAGEL, ERIC M.
Exec Dt:
02/17/2011
4
KRAUS, ERIC M.
Exec Dt:
02/24/2011
Assignee
1
OTOTRONIX, LLC
26620 1-45 NORTH
HOUSTON, TEXAS 77386
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20110144414
12896132
Correspondence name and address
D. EDWARD DOLGORUKOV
FOUR SEAGATE, 8TH FLOOR
MARSHALL & MELHORN, LLC
TOLEDO, OH 43604
Assignment: 20
Reel/Frame:027063/0248   Pages: 4
Recorded: 10/14/2011
Attorney Dkt #:144063.00051
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BURBAN, JOHN H.
Exec Dt:
10/11/2011
2
SPEARMAN, MICHAEL R.
Exec Dt:
10/11/2011
3
KOLSTAD, DAVID S.
Exec Dt:
10/11/2011
4
CUTA, CRAIG J.
Exec Dt:
10/11/2011
Assignee
1
POROUS MEDIA CORPORATION
1350 HAMMOND ROAD
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7396383
US20060086249
11257256
Correspondence name and address
RAYE LYNN DAUGHERTY
411 EAST WISCONSIN AVENUE, STE. 2040
QUARLES & BRADY
MILWAUKEE, WI 53202
Assignment: 21
Reel/Frame:034836/0730   Pages: 7
Recorded: 01/28/2015
Attorney Dkt #:684.003US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPEARMAN, MICHAEL R.
Exec Dt:
01/02/2015
2
BURBAN, JOHN HENRY
Exec Dt:
01/05/2015
3
SHANAHAN, JOHN WILLIAM
Exec Dt:
01/05/2015
4
ROBERTS, KEITH A.
Exec Dt:
01/05/2015
Assignee
1
HEMOSTASIS LLC
5000 TOWNSHIP PARKWAY
ST. PAUL, MINNESOTA 55110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20160184564
14586962
Correspondence name and address
MARK A. LITMAN & ASSOCIATES, P.A.
7001 CAHILL ROAD, STE. 15A
EDINA, MN 55439
Assignment: 22
Reel/Frame:037618/0758   Pages: 3
Recorded: 01/29/2016
Attorney Dkt #:O167500-23059001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPEARMAN, MICHAEL R.
Exec Dt:
12/17/2015
2
HOLLNAGEL, ERIC
Exec Dt:
12/17/2015
3
SPEARMAN, BRIAN
Exec Dt:
12/17/2015
4
KERN, GABE
Exec Dt:
12/17/2015
Assignee
1
OTOTRONIX, LLC
26620 I-45 NORTH
HOUSTON, TEXAS 77386
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10390154
US20160183018
14392118
Correspondence name and address
MARSHALL & MELHORN, LLC
FOUR SEAGATE - 8TH FLOOR
JEANETTE M. KUHN
TOLEDO, OH 43604
Assignment: 23
Reel/Frame:058900/0326   Pages: 15
Recorded: 02/05/2022
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPEARMAN, MICHAEL R.
Exec Dt:
01/27/2022
2
BURBAN, JOHN
Exec Dt:
01/25/2022
3
SHANAHAN, JOHN
Exec Dt:
01/25/2022
4
CATALANO, PETER
Exec Dt:
01/25/2022
5
ROBERTS, KEITH
Exec Dt:
01/25/2022
Assignee
1
HEMOSTASIS LLC
5000 TOWNSHIP PARKWAY
ST. PAUL,, MINNESOTA 55110
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
8063264
US20070060856
11510505
 
10265201
US20180071118
15266659
 
10709585
US20190192318
16293715
Correspondence name and address
MARK LITMAN
7250 LEWIS RIDGE PARKWAY
APT 205
EDINA, MN 55439

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