Stopwords

Stopwords are terms that appear so frequently in patent text that they lose their usefulness as search terms. These stopwords occur in the following fields in the US Patent Full Text Database:

Field Name		Field Code
Abstract		ABST
Claim(s)		ACLM
Description/Specification		SPEC
Government Interest		GOVT
Other References		OREF
Parent Case Information		PARN
Title		TTL

The following words are considered “stopwords” and are not searchable terms in the US Patent Full Text Database. Although they are not indexed as search terms, they will be displayed in your search results.

a	has	such
accordance	have	suitable
according	having	than
all	herein	that
also	however	the
an	if	their
and	in	then
another	into	there
are	invention	thereby
as	is	therefore
at	it	thereof
be	its	thereto
because	means	these
been	not	they
being	now	this
by	of	those
claim	on	thus
comprises	onto	to
corresponding	or	use
could	other	various
described	particularly	was
desired	preferably	were
do	preferred	what
does	present	when
each	provide	where
embodiment	provided	whereby
fig	provides	wherein
figs	relatively	which
for	respectively	while
from	said	who
further	should	will
generally	since	with
had	some	would