David S Shapiro

US Patent:

6436139, Aug 20, 2002

Filed:

Feb 4, 2000

Appl. No.:

09/498050

Inventors:

David E. Shapiro - Highland Park IL
Thomas Victor McGahan - Memphis TN

Assignee:

SDGI Holdings, Inc. - Wilmington DE

International Classification:

A61F 244

US Classification:

623 1711

Abstract:

An improved interbody fusion device incorporating anti-rotation features to inhibit accidental screwing or unscrewing of the fusion device in an intervertebral disc space. One such feature is a thread pattern having a crest diameter that increasingly tapers from a smaller diameter at the insertion end to a larger diameter at the opposite end making further advancement of the thread into the bone more difficult. Another feature is a thread cut out on the trailing edge of the thread, creating a barb which has a tendency to inhibit unscrewing. These features may be used alone or in combination for an improved interbody fusion device.

US Patent:

D477844, Jul 29, 2003

Filed:

Oct 29, 2002

Appl. No.:

29/169842

Inventors:

David Shapiro - Chicago IL

Assignee:

Its Academic of Illinois, Inc. - Northbrook IL

International Classification:

1906

US Classification:

D19 38, D19 84

US Patent:

D481074, Oct 21, 2003

Filed:

Oct 29, 2002

Appl. No.:

29/169844

Inventors:

Bruce Shapiro - Highland Park IL
David Stone - Highland Park IL
David Shapiro - Chicago IL

Assignee:

Its Academic of Illinois, Inc. - Northbrook IL

International Classification:

1902

US Classification:

D19 90, D3303

US Patent:

D486747, Feb 17, 2004

Filed:

Feb 7, 2003

Appl. No.:

29/175666

Inventors:

David Shapiro - Chicago IL

Assignee:

Its Academic of Illinois, Inc. - Northbrook IL

International Classification:

1004

US Classification:

D10 71

US Patent:

D493735, Aug 3, 2004

Filed:

Oct 27, 2003

Appl. No.:

29/192556

Inventors:

David Shapiro - Chicago IL

Assignee:

Its Academic Of Illinois, Inc. - Northbrook IL

International Classification:

1004

US Classification:

D10 71

US Patent:

6910621, Jun 28, 2005

Filed:

Oct 29, 2002

Appl. No.:

10/281640

Inventors:

Bruce Shapiro - Highland Park IL, US
David Stone - Highland Park IL, US
David Shapiro - Chicago IL, US

Assignee:

It's Academic of Illinois, Inc. - Northbrook IL

International Classification:

B65D027/00

US Classification:

229 671, 229 673, 229 674

Abstract:

An expanding file portfolio that comprises a front panel member, a rear panel member and a spine member, all of which are made from a substantially rigid plastic material. The spine member has a base portion, a front section and a rear section. The front section of the spine member overlaps and is attached to a portion of the front panel member and the rear section of the spine member overlaps and is attached to a portion of the rear panel member. A divider insert member extends between the front panel member and the rear panel member.

US Patent:

6964110, Nov 15, 2005

Filed:

Feb 7, 2003

Appl. No.:

10/361075

Inventors:

David Shapiro - Chicago IL, US

Assignee:

It's Academic of Illinois, Inc. - Northbrook IL

International Classification:

B43L007/00
B43L007/10

US Classification:

33458, 33495

Abstract:

A distance measuring tool including a plurality of substantially flat unit members each having ears at opposite ends of opposing sides and measurement marks along a side extending between the opposing sides, with pivot members pivotably secured between the ears at opposite ends of opposing sides of adjacent unit members. The unit members are pivotally secured to adjacent pivot members along two spaced pivot axes, where the ears define the pivot axes a distance X from the ends of the ears and the pivot members define the pivot axes spaced apart a distance at least 2X. The unit members have a thickness Y and the pivot members have a width W, where 2X

US Patent:

D511916, Nov 29, 2005

Filed:

Nov 30, 2004

Appl. No.:

29/218228

Inventors:

David Shapiro - Chicago IL, US

Assignee:

It's Academic of Illinois, Inc. - Northbrook IL

International Classification:

0606

US Classification:

D 6511, D6449