1. Conduct a subject search to
retrieve patents in your area of technology
using Derwent
World Patents Index (File 351).
2. Use keywords to obtain all synonyms. Note limited truncation ? ? to take the place of one letter. |
?B 351
SYSTEM:OS - DIALOG OneSearch
File 351:Derwent WPI 1963-2006/UD,UM &UP=200633
(c) 2006 Thomson Derwent
Set Items Description
--- ----- -----------
?SELECT SURG? ? OR SURGING? OR OVERCURRENT? OR OVERVOLT? OR
OVER()(CURRENT? OR VOLT?)
15470 SURG? ?
933 SURGING?
9260 OVERCURRENT?
8087 OVERVOLT?
925321 OVER
658879 CURRENT?
607081 VOLT?
6450 OVER(W)(CURRENT? OR VOLT?)
S1 37057 SURG? ? OR SURGING? OR OVERCURRENT? OR
OVERVOLT? OR OVER()(CURRENT? OR VOLT?)
?SELECT PROTECT? OR SUPPRES? OR ARREST?
618652 PROTECT?
215697 SUPPRES?
22824 ARREST?
S2 843416 PROTECT? OR SUPPRES? OR ARREST? |
3. Use proximity connectors (1N) and (50N) to combine sets.
|
?SELECT S1 (1N) S2
37057 S1
843416 S2
S3 10868 S1 (1N) S2
?SELECT TELEPHON? OR TELECOM?
276155 TELEPHON?
52979 TELECOM?
S4 316575 TELEPHON? OR TELECOM?
?SELECT S3 (50N) S4
10868 S3
316575 S4
S5 590 S3 (50N) S4 |
4. RANK IC to obtain a list of International Class codes.
A list of class codes with the class code contained the most in the records in S5 displays first.
Type the Rank No. of the class code(s) you want to select (1).
EXIT the Rank menu to continue searching.
Type Yes (Y) to indicate that you have saved RANKed items. |
?RANK IC
Started processing RANK
Processing 100 of 590 records
Processing 200 of 590 records
Completed Ranking 590 records
DIALOG RANK Results
--------------------
RANK: S5/1-590 Field: IC= File(s): 351
(Rank fields found in 589 records -- 480 unique terms)
Page 1 of 60
RANK No. Items Term
-------- ----- ----
1 126 H02H-009/04
2 64 H02H-003/22
3 64 H02H-009/06
4 47 H04M-003/18
5 45 H04M-001/00
6 39 H02H-003/20
7 37 H01C-007/12
8 37 H02H-001/00
P = next page Pn = Jump to page n
P- = previous page M = More Options Exit = Leave RANK
To view records from RANK, enter VIEW followed by RANK
number, format, and item(s) to display, e.g., VIEW 2/9/ALL.
Enter desired option(s) or enter RANK number(s)to save terms.
?1
RANK numbers saved: 1
DIALOG RANK Results
--------------------
RANK: S5/1-590 Field: IC= File(s): 351
(Rank fields found in 589 records -- 480 unique terms)
Page 1 of 60
RANK No. Items Term
-------- ----- ----
1 126 H02H-009/04
2 64 H02H-003/22
3 64 H02H-009/06
4 47 H04M-003/18
5 45 H04M-001/00
6 39 H02H-003/20
7 37 H01C-007/12
8 37 H02H-001/00
P = next page Pn = Jump to page n
P- = previous page M = More Options Exit = Leave RANK
To view records from RANK, enter VIEW followed by RANK
number, format, and item(s) to display, e.g., VIEW 2/9/ALL.
Enter desired option(s) or enter RANK number(s) to
save terms.
?EXIT
RANK results will be erased; have you saved all the
terms of interest? (YES/NO)
?Y
Temp SearchSave "TD335" stored
Creating temporary SearchSave ... TD335 |
5. Execute the SearchSave (EXS).
6. Use the OR connector to combine the class code set with the keyword set to retrieve all records on this topic.
|
Enter EXS to execute the SearchSave
?EXS
Executing TD335
S6 3205 IC="H02H-009/04"
?SELECT S5 OR S6
590 S5
3205 S6
S7 3669 S5 OR S6 |
| 7. TYPE S7 using the user-defined format TI to see the Derwent descriptive titles of the patents. |
?TYPE S7/TI/1-2
7/TI/1 (Item 1 from file: 351)
DIALOG(R)File 351:(c) 2006 Thomson Derwent.
All rts. reserv.
Over voltage warning device for power socket, has
warning unit to output optical and acoustic warning
signals simultaneously or separately if
output load of main body is larger than maximum
nominal load
7/TI/2 (Item 2 from file: 351)
DIALOG(R)File 351:(c) 2006 Thomson Derwent.
All rts. reserv.
Controller for dimmer switch in DC lighting system,
has pulse width modulation circuit which applies
predetermined process to drive voltage to provide
modified output whose maximum effective voltage is
capped |
