83 



-patent no. 3,280,823 C2:37-40 



It is another object of the invention to provide 

 an agent for the treatment of tobacco smoke 

 whereby nicotine is easily released thereinto in 

 controlled amounts". 



-patent no. 3,584,630 C2:69-71 



[I]t can be seen that the process .. .enables the 

 manipulation of the nicotine content of tobacco 

 material, such as cut leaf and reconstituted leaf, 

 by removal of nicotine from a suitable nicotine 

 tobacco source or by the addition of nicotine to a 

 low nicotine tobacco material"". 



-patent no. 4,215,706 C3:61-66 



. . .processed tobaccos can be manufactured 

 under conditions suitable to provide products 

 having various nicotine levels"^. 



-patent no. 5,031,646 C5:63-65 



Examples of suitable tobacco materials 

 include .. .processed tobacco materials such as 

 expanded tobaccos, processed tobacco stems, 

 reconstituted tobacco materials or 

 reconstituted tobacco materials having 

 varying levels of endogenous and exogenous 

 nicotine''^. . . . 



-patent no. 5,031,646 C5:21-27 



...the present invention. . .is particularly 

 useful for the maintenance of the proper 

 amount of nicotine in tobacco smoke. 



. . .previous efforts have been made to add nicotine to 

 tobacco products wherein the nidotine level in the 

 tobacco was undesirably low"'. 



-patent no. 3,584,630 C2:5-15 



It can precisely manipulate the rate at which the nicotine 



is delivered in the cigarette: 



It is a further object of, this invention to 

 provide a cigarette which delivers a larger 

 amount of nicotine in the first few puffs of 

 the cigarette than in the last few puffs", 

 -patent no. 4,595,024 C2:23-26 



12 



