The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 1995
Filed:
Feb. 08, 1994
Jeffrey A Boettcher, Falcon Heights, MN (US);
Lanny L Harklau, Stillwater, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
A fluorescent spectrophotometer measures the fluorescent characteristics of fluorescent probes within functional compositions of a specimen. The fluorescent spectrophotometer emits light appropriate for exciting the fluorescer or fluorescers contained within the specimen. The excited fluorescer emits within an emission wavelength spectrum. Fluorescers having a narrower wavelength region over which an abrupt change in emission intensity occurs are chosen for use as a fluorescent probe. The fluorescent spectrophotometer detects the change in intensity through this narrower area and performs a derivative calculation on the intensity curve. The fluorescent spectrophotometer is able to distinguish the fluorescer from other fluorescers or interfering fluorescent backgrounds.