U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method and apparatus for measuring hair density

Patent 5331472 Issued on July 19, 1994. Estimated Expiration Date: Icon_subject September 14, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

1396607

2110310

Soft contact lens inspection device
Patent #: 3981593
Issued on: 09/21/1976
Inventor: Boyle

Optical magnifier apparatus
Patent #: 5087112
Issued on: 02/11/1992
Inventor: Feinbloom

Magnifier
Patent #: 5196964
Issued on: 03/23/1993
Inventor: Heine, et al.

Fiber viewer Patent #: 5210647
Issued on: 05/11/1993
Inventor: Hartnagel, et al.

Inventor

Application

No. 944405 filed on 09/14/1992

US Classes:

359/894, OPTICAL APERTURE OR TUBE, OR TRANSPARENT CLOSURE359/802, Magnifier359/808, With lens casing359/809Combined with diverse art tool, instrument or machine

Examiners

Primary: Ben, Loha
Assistant: Robbins, Thomas

Attorney, Agent or Firm

International Class

G02B 027/00

Abstract

A method and apparatus for measuring hair in a predefined area of skin. The method addresses the preparation of the skin and the device for counting the hairs in a defined area. The apparatus contains an optical magnifying lens, a housing for the lens and an aperture of known surface area in order to calculate the density of the hair in the portion of skin under measurement. When the method or apparatus are used, the end result will be a density measurement of hair per unit area. When this measurement is compared with similar measurements in the same area from a previous time or from a different area at the same time, a diagnosis of whether hair loss is occurring can be made with considerable accuracy. Similar applications can be made in areas where treatment suggests that hair loss has ceased or reversed through some intervention.

PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$18.95more info
 
Sign InRegister
Username  
Password   
forgot password?