John W Montgomery

Author:

John M. Montgomery

ISBN #:

0830712526

Author:

John M. Montgomery

ISBN #:

0884490866

Author:

John M. Montgomery

ISBN #:

0884491099

Author:

John L. Montgomery

ISBN #:

0890964882

Author:

John L. Montgomery

ISBN #:

0890964742

Author:

John Montgomery

ISBN #:

0047910186

Author:

John Montgomery

ISBN #:

0048230812

Author:

John Montgomery

ISBN #:

0049000209

US Patent:

58554793, Jan 5, 1999

Filed:

Mar 12, 1996

Appl. No.:

8/614464

Inventors:

Nelson J. Wong - Plano TX
John W. Montgomery - Duncanville TX

International Classification:

A61C 502

US Classification:

433102

Abstract:

A set of endodontic cutting instruments, each having handles and each having a different working tip diameter incrementally increasing in size from one instrument to the next. The set includes a first smaller standard size endodontic cutting instrument having a grasping end with a first color according to a standard color code, a second larger standard size endodontic cutting instrument having a grasping end with a second color according to the standard color code and a non-standard intermediate size endodontic instrument having a size between the first smaller standard size and the second larger standard size and having a grasping end with a color combination including a first portion having the first standard color corresponding to the first smaller standard size and a second portion having the second standard color corresponding to the second larger standard size. Nonstandard taper portions on the cutting instruments are provided to smooth stair step root canal cavities. The non-standard taper portions are identified by non-ISO color portions on the handles.

US Patent:

62066951, Mar 27, 2001

Filed:

Jan 5, 1999

Appl. No.:

9/225879

Inventors:

Nelson J. Wong - Carrollton TX
John W. Montgomery - Houston TX

International Classification:

A61C5/02

US Classification:

433102

Abstract:

A step-back eliminating tapered dental cutting instrument for improved root canal treatment and a method of root canal therapy in which the instrument includes a first tapered working portion having spiral-shaped cutting edges which define a first tapered angle, and a second tapered working portion having spiral-shaped cutting edges which define at least one second tapered angle. The second separate tapered angle may have a compound curve taper steeper at the distal tip of the instrument. The root canal therapy method which eliminates the step-back procedure includes the step of using a series of progressively increasing diameter dental cutting tools, each having a first tapered portion at one taper angle, and having a second tapered portion at another steeper angle, which is steeper than the first taper portion, and using each progressively larger diameter dental cutting tool to the same working depth of the previous tool so that a rapid decrease in diameter is achieved at the apical orifice of the root canal.

US Patent:

53379349, Aug 16, 1994

Filed:

Jun 18, 1992

Appl. No.:

7/900615

Inventors:

Karen T. Johnson - Dallas TX
Lori T. Adams - Fremont CA
April D. Montgomery - Duncanville TX
John W. Montgomery - Duncanville TX

Assignee:

Inventus, Inc. - Dallas TX

International Classification:

A45F 402

US Classification:

224153

Abstract:

A flipover carrying device for use by a wearer to carry possessions on the wearer's back and comprising a back panel supported adjacent a wearer's back, a moveable pouch supported adjacent the back panel in a first position and supportable adjacent the wearer's chest in a second position, a motion inhibitor interposed between the back panel and the pouch when the pouch is in the first position, and the pouch is attached in a position such that it is graspable by the wearer for moving the pouch from the first to the second position without removing the device.