<s>
A	O
patent	O
application	O
or	O
patent	O
may	O
contain	O
drawings	B-Application
,	O
also	O
called	O
patent	B-Application
drawings	I-Application
,	O
illustrating	O
the	O
invention	O
,	O
some	O
of	O
its	O
embodiments	O
(	O
which	O
are	O
particular	O
implementations	O
or	O
methods	O
of	O
carrying	O
out	O
the	O
invention	O
)	O
,	O
or	O
the	O
prior	O
art	O
.	O
</s>
<s>
The	O
drawings	B-Application
may	O
be	O
required	O
by	O
the	O
law	O
to	O
be	O
in	O
a	O
particular	O
form	O
,	O
and	O
the	O
requirements	O
may	O
vary	O
depending	O
on	O
the	O
jurisdiction	O
.	O
</s>
<s>
Under	O
the	O
European	O
Patent	O
Convention	O
,	O
provides	O
that	O
a	O
European	O
patent	O
application	O
shall	O
contain	O
any	O
drawings	B-Application
referred	O
to	O
in	O
the	O
description	O
or	O
the	O
claims	O
.	O
</s>
<s>
Drawings	B-Application
are	O
therefore	O
optional	O
.	O
</s>
<s>
specifies	O
the	O
form	O
in	O
which	O
the	O
drawings	B-Application
must	O
be	O
executed	O
.	O
</s>
<s>
The	O
European	O
search	O
report	O
is	O
drawn	O
up	O
in	O
respect	O
of	O
a	O
European	O
patent	O
application	O
on	O
the	O
basis	O
of	O
the	O
claims	O
,	O
with	O
due	O
regard	O
to	O
the	O
description	O
and	O
any	O
drawings	B-Application
.	O
</s>
<s>
In	O
addition	O
,	O
the	O
extent	O
of	O
the	O
protection	O
conferred	O
by	O
a	O
European	O
patent	O
or	O
a	O
European	O
patent	O
application	O
is	O
determined	O
by	O
the	O
claims	O
,	O
with	O
the	O
description	O
and	O
drawings	B-Application
being	O
used	O
to	O
interpret	O
the	O
claims	O
.	O
</s>
<s>
Under	O
the	O
Patent	O
Cooperation	O
Treaty	O
,	O
notably	O
provides	O
that	O
the	O
drawings	B-Application
are	O
required	O
when	O
they	O
are	O
necessary	O
for	O
the	O
understanding	O
of	O
the	O
invention	O
.	O
</s>
<s>
specifies	O
special	O
physical	O
requirements	O
for	O
drawings	B-Application
in	O
an	O
international	O
application	O
.	O
</s>
<s>
The	O
reason	O
for	O
specifying	O
the	O
standards	O
in	O
detail	O
is	O
that	O
the	O
drawings	B-Application
are	O
printed	O
and	O
published	O
in	O
a	O
uniform	O
style	O
when	O
the	O
patent	O
issues	O
,	O
and	O
the	O
drawings	B-Application
must	O
also	O
be	O
such	O
that	O
they	O
can	O
be	O
readily	O
understood	O
by	O
persons	O
using	O
the	O
patent	O
descriptions	O
.	O
</s>
<s>
No	O
names	O
or	O
other	O
identification	O
are	O
permitted	O
within	O
the	O
“	O
sight	O
”	O
of	O
the	O
drawing	O
,	O
and	O
applicants	O
are	O
expected	O
to	O
use	O
the	O
space	O
above	O
and	O
between	O
the	O
hole	O
locations	O
to	O
identify	O
each	O
sheet	O
of	O
drawings	B-Application
.	O
</s>
<s>
The	O
following	O
rule	O
,	O
reproduced	O
from	O
title	O
37	O
of	O
the	O
Code	O
of	O
Federal	O
Regulations	O
,	O
relates	O
to	O
the	O
standards	O
for	O
drawings	B-Application
:	O
</s>
<s>
It	O
stated	O
that	O
the	O
Commissioner	O
of	O
the	O
USPTO	O
could	O
ask	O
for	O
additional	O
information	O
,	O
drawings	B-Application
,	O
or	O
diagrams	O
if	O
the	O
description	O
is	O
not	O
clear	O
.	O
</s>
<s>
In	O
utility	O
and	O
design	O
patent	O
applications	O
,	O
drawings	B-Application
can	O
be	O
in	O
black	B-Application
ink	I-Application
or	O
color	O
.	O
</s>
<s>
Black	O
and	O
white	O
drawings	B-Application
are	O
normally	O
required	O
.	O
</s>
<s>
On	O
rare	O
occasions	O
,	O
color	O
drawings	B-Application
may	O
be	O
necessary	O
as	O
the	O
only	O
practical	O
medium	O
by	O
which	O
to	O
disclose	O
the	O
subject	O
matter	O
sought	O
to	O
be	O
patented	O
in	O
a	O
utility	O
or	O
design	O
patent	O
application	O
or	O
the	O
subject	O
matter	O
of	O
a	O
statutory	O
invention	O
registration	O
.	O
</s>
<s>
Color	O
photographs	O
can	O
be	O
accepted	O
in	O
utility	O
and	O
design	O
patent	O
applications	O
if	O
the	O
conditions	O
for	O
accepting	O
color	O
drawings	B-Application
and	O
black	O
and	O
white	O
photographs	O
have	O
been	O
satisfied	O
.	O
</s>
<s>
Unlike	O
utility	O
patents	O
,	O
applications	O
for	O
design	O
patents	O
rely	O
fully	O
on	O
the	O
drawings	B-Application
.	O
</s>
<s>
Patent	B-Application
drawing	I-Application
features	O
can	O
contain	O
the	O
following	O
features	O
:	O
</s>
<s>
Identification	O
of	O
drawings	B-Application
:	O
includes	O
the	O
title	O
of	O
the	O
invention	O
,	O
inventor	O
's	O
name	O
,	O
and	O
application	O
number	O
..	O
etc	O
.	O
</s>
<s>
Graphic	O
forms	O
in	O
drawings	B-Application
.	O
</s>
<s>
Chemical	O
or	O
mathematical	O
formulae	O
,	O
tables	O
,	O
and	O
waveforms	O
may	O
be	O
submitted	O
as	O
drawings	B-Application
and	O
are	O
subject	O
to	O
the	O
same	O
requirements	O
as	O
drawings	B-Application
.	O
</s>
<s>
Shading	B-General_Concept
:	O
aids	O
in	O
understanding	O
the	O
invention	O
used	O
to	O
indicate	O
the	O
surface	O
or	O
shape	O
of	O
spherical	O
,	O
cylindrical	O
,	O
and	O
conical	O
elements	O
of	O
an	O
object	O
.	O
</s>
<s>
Legends	B-Application
:	O
should	O
contain	O
as	O
few	O
words	O
as	O
possible	O
.	O
</s>
<s>
The	O
patent	B-Application
drawing	I-Application
can	O
further	O
contain	O
a	O
numbering	O
of	O
sheets	O
of	O
drawings	B-Application
,	O
numbering	O
of	O
views	O
,	O
copyright	O
notice	O
,	O
security	O
markings	O
,	O
corrections	O
(	O
durable	O
and	O
permanent	O
)	O
,	O
no	O
holes	O
,	O
and	O
a	O
type	O
of	O
drawing	O
indication	O
.	O
</s>
<s>
Exploded	B-Application
views	I-Application
:	O
views	O
with	O
the	O
separated	O
parts	O
embraced	O
by	O
a	O
bracket	O
,	O
to	O
show	O
the	O
relationship	O
or	O
order	O
of	O
assembly	O
of	O
various	O
parts	O
are	O
permissible	O
.	O
</s>
<s>
Partial	O
views	O
:	O
a	O
view	B-Algorithm
of	O
a	O
large	O
machine	O
or	O
device	O
in	O
its	O
entirety	O
may	O
be	O
broken	O
into	O
partial	O
views	O
on	O
a	O
single	O
sheet	O
,	O
or	O
extended	O
over	O
several	O
sheets	O
if	O
there	O
is	O
no	O
loss	O
in	O
facility	O
of	O
understanding	O
the	O
view	B-Algorithm
.	O
</s>
<s>
Sectional	O
views	O
:	O
The	O
plane	O
upon	O
which	O
a	O
sectional	O
view	B-Algorithm
is	O
taken	O
should	O
be	O
indicated	O
on	O
the	O
view	B-Algorithm
from	O
which	O
the	O
section	O
is	O
cut	O
by	O
a	O
broken	O
line	O
.	O
</s>
