Appeal No. 2001-0355
Application No. 08/750,069
relates to an enzyme preparation useful for treatment of lignocellulosic materials which
contains hexenuronidase activity together with suitable adjuvents. This appealed
subject matter is adequately represented by independent claims 1 and 17 which read as
follows:
1. A method for modifying lignocellulosic material, characterized in that at
least a part of the hexenuronic acid groups of the lignocellulosic material is
selectively removed.
17. An enzyme preparation useful for treatment of lignocellulosic
materials, characterized in that it contains an essential amount of
hexenuronidase activity together with suitable adjuvents used in enzyme
preparations intended for application in the pulp and paper industry.
The prior art set forth below is relied upon by the examiner as evidence of
obviousness:
Puls et al. (Puls) 4,200,692 Apr. 29, 1980
Pedersen “On the use of Pulpzyme HA™ for Bleach Boosting”, Natural
Pulping, Novo/Nordisk a/s (Sept. 1989).
“Pulpzyme HA™”, Novo Brochure (Sept. 1989)
Admitted Prior Art (Specification, page 1, line 17 - page 2, line 9) based on
W0 93/11296
All of the appealed claims stand rejected under the first paragraph of
35 U.S.C. § 112 as being based upon a disclosure which would not enable those with
ordinary skill in the art to practice the here claimed invention.
All of the appealed claims also stand rejected under 35 U.S.C. § 103 as being
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