US4572916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tablets
Assignee: Suedzucker AG
•
Filing: 1983-11-21
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Granted: 1986-02-25
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Expires: 2003-11-21
Abstract
Abstract Isomaltulose is of use for direct compression of tablets.
Inventors
- 👤 Michael G. Lindley
- 👤 Steven Hathaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:30
CPC Classifications
A; A21; A21D; A21D2/00; A21D2/08; A21D2/14; A21D2/18; A21D2/181; A23; A23L; A23L2/00; A23L2/52; A23L2/60; A23L27/00; A23L27/30; A23L27/33; A61; A61K; A61K9/00; A61K9/20; A61K9/2004; A61K9/2013; A61K9/2018
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
41 words
In the method of making tablets consisting essentially of tableting by direct compression a dry mix containing 3 to 90% of at least one active ingredient, the improvement comprising employing as a direct tableting aid, 10-95% crystallized, non-granulated and non-compacted isomaltulose.
Claim 2
Dependent Claim
41 words
In the method of making tablets consisting essentially of tableting by direct compression a dry mix containing 3 to 90% of at least one active ingredient, the improvement comprising employing as a direct tableting aid, 10-95% crystallized, non-granulated and non-compacted isomaltulose.
Claim 3
Dependent Claim
42 words
A directly compressed binder-free non-granulated tablet consisting essentially of 10 to 95% non-compacted prior to tableting crystalline isomaltulose having the structure ##STR2## and 3-90% of at least one active ingredient, admixed together with a lubricant produced by the process of claim 1.
Claim 4
Dependent Claim
17 words
The method of claim 1, wherein the isomaltulose is isomaltulose directly obtained by crystallization from aqueous solution.
Claim 5
Dependent Claim
13 words
The method of claim 1, wherein said tablettable powder also contains a lubricant.
Claim 6
Dependent Claim
22 words
The method of claim 1, wherein said isomaltulose contains up to 20% impurities introduced during the preparation of said isomaltulose from sucrose.
Claim 7
Dependent Claim
13 words
The method of claim 5, wherein said isomaltulose is at least 90% pure.
Claim 8
Dependent Claim
14 words
The method of claim 1, wherein said active ingredient is a pharmaceutically active ingredient.
Claim 9
Dependent Claim
12 words
The method of claim 1, wherein said active ingredient is a sweetener.
Claim 10
Dependent Claim
14 words
The method of claim 1, wherein said tablettable powder does not contain a binder.
Claim 11
Dependent Claim
34 words
A tablet consisting essentially of a directly compressed dry mix containing 10 to 95% crystallized non-granulated and non-compacted isomaltulose and 3-90% of at least one active ingredient produced by the process of claim 1.
Claim 12
Dependent Claim
16 words
The tablet of claim 10 consisting essentially of said isomaltulose, said active ingredient and a lubricant.
Claim 13
Dependent Claim
13 words
The tablet of claim 11 wherein said isomaltulose contains up to 20% impurities.
Claim 14
Dependent Claim
14 words
The tablet of claim 11 wherein said active ingredient is a pharmaceutically active ingredient.
Claim 15
Dependent Claim
12 words
The tablet of claim 11 wherein said active ingredient is a sweetener.
Claim 16
Dependent Claim
14 words
The tablet of claim 2 wherein said active ingredient is a pharmaceutically active ingredient.
Claim 17
Dependent Claim
12 words
The tablet of claim 2 wherein said active ingredient is a sweetener.
Claim 18
Dependent Claim
66 words
The method of claim 1 which consists essentially of tableting by direct compression a dry mix containing 10 to 95% of non-granulated and non-compacted crystalline isomaltulose of the structure ##STR3## and containing up to 20% impurities introduced during the preparation of said isomaltulose from sucrose and 3 to 90% of at least one active ingredient, admixed together with a lubricant in the absence of a binder.
Claim 19
Dependent Claim
15 words
The tablet of claim 10 wherein said isomaltulose, prior to compaction, was non-granulated and non-compacted.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |