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# Naturally occurring chemicals cannot be newly patented once

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Naturally occurring chemicals cannot be newly patented once [#permalink]

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27 Jan 2010, 07:32
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Naturally occurring chemicals cannot be newly patented once their structures have been published. Before a naturally occurring chemical compound can be used as a drug, however, it must be put through the same rigorous testing program as any synthetic compound, culminating in a published report detailing the chemical’s structure and observed effects.
If the statements above are true, which of the following must also be true on the basis of them?
(A) Any naturally occurring chemical can be reproduced synthetically once its structure is known.
(B) Synthetically produced chemical compounds cannot be patented unless their chemical structures are made public.
(C) If proven no less effective, naturally occurring chemicals are to be preferred to synthetic compounds for use in drugs.
(D) Once a naturally occurring compound has been approved for use as a drug, it can no longer be newly patented.
(E) A naturally occurring chemical cannot be patented unless its effectiveness as a drug has been rigorously established.
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27 Jan 2010, 09:10
Has to be D

A naturally occurring compound - approved for use as a drug ---> A report about its structure has been published ---> if report published, it cannot be newly patented
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27 Jan 2010, 09:41
Stimulus contains several facts, not an argument (it lacks conclusion)

Let's summarize the facts:
1) One cannot patent naturally occurring chemical, after its structure has been published
2) To use the chemical as a drug, its structure and effects should be published.

It means that if some natural chemical is used as a drug, its structure has already been published. So nobody can patent it again.

It's (D)
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27 Jan 2010, 11:53
OA
[Reveal] Spoiler:
D

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27 Jan 2010, 15:09

Since once the structure is published, you cannot patent the naturally occuring chemicals.
You cannot use the natural compound as a drug till it gets tested.

Thus the sequence of event looks like -

Structure gets published -> tested -> Aprroval/Denial

Hence we cannot patents the drug which is approved.

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09 Jul 2010, 02:14
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09 Jul 2010, 06:26
d .
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R E S P E C T

Finally KISSedGMAT 700 times 450 to 700 An exprience

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23 Jul 2010, 11:07
sleep of mind ...picked B and then read the question and explanantions given above ...and undrstood why its D
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28 Jul 2010, 21:27
Picked D ...........Thank god its correct .....was very suspicious about my answer till OA was revealed ...
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20 Aug 2010, 03:05
I go for D
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20 Aug 2010, 05:29
+1 for D.
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20 Aug 2010, 09:45
has to be D
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20 Aug 2010, 10:15
D for me too.
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20 Aug 2010, 10:17
D

would this be considered as a 700-question?
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21 Aug 2010, 04:22
D it is
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24 Aug 2010, 01:54
IMO B, But after reading explanations, I agree that D is better.
Are we eliminating B just because of discrepancy between "Public" and "Published" ???
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25 Aug 2010, 10:31
D
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25 Aug 2010, 22:27
Very Straight forward question, and D it is. The question could have been more difficult if the answer choice was not so obvious.
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07 Sep 2010, 01:13
D all the way!!!
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08 Sep 2010, 05:36
D for me
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Re: Naturally occurring chemicals   [#permalink] 08 Sep 2010, 05:36

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