Patent US4073883A successfully refreshed from Google Patents.
US4073883A
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Method for treatment of impaired hearing
Assignee: Eisai Co Ltd
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Filing: 1977-03-02
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Granted: 1978-02-14
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Expires: 1997-03-02
Abstract
Abstract Impaired hearing is treated by administering to a human suffering from impaired hearing Coenzyme Q of the general formula: ##STR1## wherein n is 7 to 10.
Inventors
- 👤 Koichi Yasuda
- 👤 Yusuke Ikeda
- 👤 Yukiaki Nishida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:36
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/12; A61P; A61P27/00; A61P27/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
38 words
A method for treating partially impaired hearing which comprises administering to a human suffering from partially impaired hearing a therapeutically effective amount of Coenzyme Q having the formula: ##STR3## wherein n is an integer from 7 to 10.
Claim 2
Independent Claim
38 words
A method for treating partially impaired hearing which comprises administering to a human suffering from partially impaired hearing a therapeutically effective amount of Coenzyme Q having the formula: ##STR3## wherein n is an integer from 7 to 10.
Claim 3
Dependent Claim
11 words
A method as claimed in claim 1, wherein n is 10.
Claim 4
Dependent Claim
24 words
A method as claimed in claim 1, wherein the partially impaired hearing is partially impaired hearing caused by a side effect of a drug.
Claim 5
Dependent Claim
26 words
A method as claimed in claim 1, wherein said therapeutically effective amount is a daily dose of 10 - 200 mg of Coenzyme Q, administered orally.
Claim 6
Dependent Claim
27 words
A method as claimed in claim 1, wherein said therapeutically effective amount is a daily dose of 10 - 200 mg of Coenzyme Q, administered by injection.
Claim 7
Dependent Claim
65 words
A method as claimed in claim 1, wherein the partially impaired hearing is caused by continuous exposure to excessively loud noises, disease in the auditory pathways or in the auditory center, brain lesion, lesion of cortical brain substance, disease of the labyrinth, lesion of the auditory nerve or the central neutral pathways, disease of blood vessels of the inner ear, or side effects of drugs.
Claim 8
Dependent Claim
34 words
A method as claimed in claim 6 in which the therapeutically effective amount is an amount effective for decreasing the total hearing acuity threshold value for sounds of various frequencies in an audiometer test.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |