diff --git a/app/controllers/admin/patents_controller.rb b/app/controllers/admin/patents_controller.rb
index 12e6109..9670885 100644
--- a/app/controllers/admin/patents_controller.rb
+++ b/app/controllers/admin/patents_controller.rb
@@ -17,7 +17,7 @@ class Admin::PatentsController < OrbitMemberController
     @member = MemberProfile.find(patent_params['member_profile_id']) rescue nil
     @patent = Patent.new(patent_params)
     @patent.save
-    redirect_to '/admin/members/'+@member.to_param+'/Patent'
+    redirect_to URI.encode('/admin/members/'+@member.to_param+'/Patent')
   end
 
   def edit
@@ -30,7 +30,7 @@ class Admin::PatentsController < OrbitMemberController
     @patent = Patent.find(params[:id])
     @patent.update_attributes(patent_params)
     @patent.save
-    redirect_to '/admin/members/'+@member.to_param+'/Patent'
+    redirect_to URI.encode('/admin/members/'+@member.to_param+'/Patent')
   end
 
   def destroy
@@ -66,7 +66,7 @@ class Admin::PatentsController < OrbitMemberController
     @intro = @intro.nil? ? PatentIntro.new({:member_profile_id=>@member.id}) : @intro
     @intro.update_attributes(intro_params)
     @intro.save
-    redirect_to '/admin/members/'+@member.to_param+'/Patent'
+    redirect_to URI.encode('/admin/members/'+@member.to_param+'/Patent')
   end
 
   def get_settings
diff --git a/app/views/plugin/personal_patent/_profile.html.erb b/app/views/plugin/personal_patent/_profile.html.erb
index be72b63..d6ba3d7 100644
--- a/app/views/plugin/personal_patent/_profile.html.erb
+++ b/app/views/plugin/personal_patent/_profile.html.erb
@@ -44,7 +44,7 @@
             <%= check_box_tag 'to_change[]', patent.id.to_s, false, :class => "list-check" %>
           </td>
         <% end %>
-        <td><%= patent.publish_date.strftime("%Y.%m") %></td>
+        <td><%= (patent.publish_date.strftime("%Y.%m") rescue "") %></td>
         <td>
           <%= link_to patent.patent_title, OrbitHelper.url_to_plugin_show(patent.to_param,'personal_patent').to_s, target: "blank"%>
           <div class="quick-edit">