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Patents
Patents Assigned to Kenneth R. Bowers
Patents Assigned to Kenneth R. Bowers
Face mask
Patent number:
4488547
Abstract:
A disposable surgical mask which changes color to signal significant loss of bacterial filtration efficiency due to moisture accumulation.
Type:
Grant
Filed:
September 7, 1982
Date of Patent:
December 18, 1984
Assignee:
Kenneth R. Bowers, Jr.
Inventor:
Beatrice R. Mason
Container tamper detection device
Patent number:
4424911
Abstract:
A tampering indicator for medicine bottles which changes color upon pressure applied to the bottle during opening.
Type:
Grant
Filed:
December 10, 1982
Date of Patent:
January 10, 1984
Assignee:
Kenneth R. Bowers
Inventor:
Joseph A. Resnick