Patent US5318679A successfully refreshed from Google Patents.
US5318679A
Expired / Lapsed
US
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Synthesis of chain chemical compounds
Assignee: H and N Instruments Inc
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Filing: 1993-01-25
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Granted: 1994-06-07
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Expires: 2013-01-25
Abstract
Abstract The present invention is an improved method of making sequenced chemical chain compounds through the application of laser copy technology to UV light directed spatially addressed parallel chemical synthesis and is particularly useful in the production of numerous proteins of varying amino acid sequences on a restricted solid support. Chemical groups, such as amines, are attached to the surface of a solid sup- port, such as flat glass, and subjected to chemical reaction disposed to link chemical units to the attached groups that are protected from further reaction by photolabile groups. Such solid support and photolabile protected units are then selectively deprotected by irradiation with a UV laser beam. The support and attached units are then subjected to chemical reaction to link chemical units to the selectively deprotected units. By repeated such treatment it is possible to produce unlimited combinations of chain chemical units in less time and at greater efficiency than has previously been possible.
Inventors
- 👤 Gary M. Nishioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:34
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/0046; B82; B82Y; B82Y30/00; C; C07; C07C; C07C231/00; C07C231/02; C07C237/00; C07C237/02; C07C237/04; C07C237/12; C07K; C07K1/00; C07K1/04; C07K1/047; B01J2219/00; B01J2219/00274; B01J2219/00277; B01J2219/00351; B01J2219/00378; B01J2219/00427; B01J2219/00432; B01J2219/00436; B01J2219/00441; B01J2219/00457; B01J2219/00475; B01J2219/00497; B01J2219/00527; B01J2219/00533; B01J2219/00583; B01J2219/00585; B01J2219/0059; B01J2219/00596; B01J2219/00603; B01J2219/00605; B01J2219/00612; B01J2219/00614; B01J2219/00617; B01J2219/00623; B01J2219/00626; B01J2219/00659; B01J2219/0068; B01J2219/00686; B01J2219/00689; B01J2219/00709; B01J2219/00711; B01J2219/00718; B01J2219/0072; B01J2219/00725; C40; C40B; C40B40/00; C40B40/04; C40B40/10; C40B60/00; C40B60/14
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
77 words
In the process of making chemical compounds wherein photoprotected chemical units attached to the surface of a support are selectively irradiated to deprotect preselected areas of said surface so that the surface of said support may be subjected to chemical reaction disposed to attach chemical units to the deprotected units, the improvement in combination therewith of irradiating said surface with the laser beam of a laser printer, said laser having a wave length in the ultraviolet range.
Claim 2
Dependent Claim
77 words
In the process of making chemical compounds wherein photoprotected chemical units attached to the surface of a support are selectively irradiated to deprotect preselected areas of said surface so that the surface of said support may be subjected to chemical reaction disposed to attach chemical units to the deprotected units, the improvement in combination therewith of irradiating said surface with the laser beam of a laser printer, said laser having a wave length in the ultraviolet range.
Claim 3
Dependent Claim
23 words
The process of claim 1 wherein the chemical units attached to the deprotected units are photoprotected for subsequent irradiation with said laser beam.
Claim 4
Dependent Claim
30 words
The process of claim 2 wherein said units are subsequently irradiated with said laser beam and subjected to chemical reaction disposed to attach a chemical unit to the deprotected units.
Claim 5
Dependent Claim
33 words
The process of claim 3 wherein the steps of photo-protection of said units, irradiation and chemical reaction to attach a chemical unit to the deprotected units are repeated to achieve multichain chemical compounds.
Claim 6
Dependent Claim
24 words
The process of claim 1 wherein said laser beam is caused to scan said surface so as to effect parallel lines of deprotected areas.
Claim 7
Dependent Claim
25 words
The process of claim 5 wherein said laser beam is caused to pulsate on and off so as to effect individual restricted areas of deprotection.
Claim 8
Dependent Claim
25 words
The process of claim 5 wherein said support is rotated subsequent to such scan from 0 to 90 degrees to cause said lines to intersect.
Claim 9
Dependent Claim
14 words
The process of claim 1 wherein said laser beam wavelengths are above 3200 Angstroms.
Claim 10
Dependent Claim
39 words
The process of claim 1 wherein said laser beam printer comprises a laser beam directed onto the surface of a multisurfaced rotating mirror positioned so that each mirror surface reflects said beam onto said surface to scan said surface.
Claim 11
Dependent Claim
27 words
The process of claim 2 wherein the chemical units attached to said support are amines and the chemical units attached to the deprotected areas are amino acids.
Claim 12
Dependent Claim
37 words
The process of claim 3 wherein the chemical units attached to said support are amines and the chemical units subsequently attached to deprotected units are amino acids so that the linkage between the units are peptide linkages.
Claim 13
Dependent Claim
37 words
The process of claim 4 wherein the chemical units attached to said support are amines and the chemical units subsequently attached to deprotected units are amino acids so that the linkage between the units are peptide linkages.
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) | 1997-06-06 | 1997-12-06 | 1998-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-06 | 2001-12-06 | 2002-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-06 | 2005-12-06 | 2006-06-07 | $7700.00 | Window Closed / Lapsed |