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Extract from the Register of European Patents

EP About this file: EP0450668

EP0450668 - Semiconductor laser array having power and high beam quality [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  03.01.1997
Database last updated on 03.10.2024
Most recent event   Tooltip03.01.1997No opposition filed within time limitpublished on 19.02.1997 [1997/08]
Applicant(s)For all designated states
TRW INC.
1900 Richmond Road Cleveland
Ohio 44124 / US
[N/P]
Former [1991/41]For all designated states
TRW INC.
1900 Richmond Road
Cleveland Ohio 44124 / US
Inventor(s)01 / Botez, Dan
234 Paseo de Las Delicias
Redondo Beach, California 90277 / US
02 / Jansen, Michael
7530, Cowan Avenue
Los Angeles, California 90045 / US
03 / Mawst, Luke J.
22213 Redbeam
Torrance, California 95050 / US
04 / Peterson, Gary Lee
4531 Montair Avenue, Apt. A25
Long Beach, California 90808 / US
05 / Simmons, William Walter
4181 Maritime Dr.
Rancho Palos Verdes, California 90274 / US
06 / Wilcox, Jaroslava Zitkova
235 N. Kenter Ave.
Los Angeles, California 90049 / US
07 / Yang, Jane Jan Jan
728 S. Bristol Ave
Los Angeles, California 90049 / US
[1991/41]
Representative(s)Crawford, Andrew Birkby, et al
A.A. Thornton & Co. 235 High Holborn
London WC1V 7LE / GB
[N/P]
Former [1991/41]Crawford, Andrew Birkby, et al
A.A. THORNTON & CO. Northumberland House 303-306 High Holborn
London WC1V 7LE / GB
Application number, filing date91109377.128.09.1989
[1991/41]
Priority number, dateUS1988025490507.10.1988         Original published format: US 254905
[1991/41]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0450668
Date:09.10.1991
Language:EN
[1991/41]
Type: A3 Search report 
No.:EP0450668
Date:23.10.1991
Language:EN
[1991/43]
Type: B1 Patent specification 
No.:EP0450668
Date:28.02.1996
[1996/09]
Search report(s)(Supplementary) European search report - dispatched on:EP02.09.1991
ClassificationIPC:H01S3/25, H01S3/098
[1991/41]
CPC:
H01S5/4062 (EP,US); H01S5/148 (EP,US); H01S5/4068 (EP,US)
Designated contracting statesDE,   FR,   GB [1991/41]
TitleGerman:Halbleiterlaser-Array mit hoher Ausgangsleistung und hoher Strahlqualität[1996/09]
English:Semiconductor laser array having power and high beam quality[1991/41]
French:Réseau à laser à semi-conducteur à haute puissance et à faisceau de haute qualité[1991/41]
Former [1991/41]Vielfachhalbleiterlaser mit grosser Ausgangsleistung und hoher Strahlqualität
Examination procedure17.06.1991Examination requested  [1991/41]
07.10.1993Despatch of a communication from the examining division (Time limit: M06)
18.04.1994Reply to a communication from the examining division
15.07.1994Despatch of a communication from the examining division (Time limit: M06)
23.01.1995Reply to a communication from the examining division
11.05.1995Despatch of communication of intention to grant (Approval: Yes)
10.08.1995Communication of intention to grant the patent
31.10.1995Fee for grant paid
31.10.1995Fee for publishing/printing paid
Parent application(s)   TooltipEP89309891.3  / EP0363076
Opposition(s)29.11.1996No opposition filed within time limit [1997/08]
Fees paidRenewal fee
06.11.1991Renewal fee patent year 03
10.08.1992Renewal fee patent year 04
02.08.1993Renewal fee patent year 05
12.09.1994Renewal fee patent year 06
06.09.1995Renewal fee patent year 07
Penalty fee
Additional fee for renewal fee
30.09.199103   M06   Fee paid on   06.11.1991
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[XP]  - ELECTRONICS LETTERS, vol. 25, no. 5, 2nd March 1989, pages 365-366, Stevenage, Herts, GB; L.J. MAWST et al.: "Phase-locked array of anti-guided lasers with monolithic spatial filter"
 [XP]  - APPLIED PHYSICS LETTERS, vol. 54, no. 22, 29th May 1989, pages 2183-2185, Am. Inst. Phys., New York, US; D. BOTEZ et al.: "Resonant optical transmission and coupling and phase-locked diode laser arrays of antiguides: The resonant optical waveguide array"
 [A]  - INTERNATIONAL ELECTRON DEVICES MEETING (IEDM), 1980, TECHNICAL DIGEST, Washington, DC, 8th - 10th December 1980, pages 362-365, IEEE, New York, US; D.E. ACKLEY et al.: "High-power leaky-mode multiple-stripe laser"
 [A]  - APPLIED PHYSICS LETTERS, vol. 53, no. 6, 8th August 1988, pages 464-466, Am. Inst. Phys., New York, US; D. BOTEZ et al.: "High-power, diffraction-limited-beam operation from phase-locked diode-laser arrays of closely-spaced "leaky" waveguides (antiguides)"
 [A]  - APPLIED PHYSICS LETTERS, vol. 48, no. 26, 30th June 1986, pages 1770-1772, Am. Inst. Phys., New York, NY, US; S. WANG et al.: "In-phase locking in diffraction-coupled phased-array lasers"
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.