Committed additional changes; still have more to do on implied patent license.

gpl-lgpl.tex

@@ -1882,16 +1882,19 @@ with respect to the licensed software.
 
 For example, if Company \compA{} has a patent on advanced Web browsing, but
 also licenses a Web browsing software program under the GPLv2, then it
-cannot assert the patent against any party that takes a license to its
-program under the GPLv2. However, if a party uses that program without
-complying with the GPLv2, then Company \compA{} can assert, not just copyright
-infringement claims against the non-GPLv2-compliant party, but also
+cannot assert the patent against any party based on that party's use of 
+Company \compA{}'s GPL'ed Web browsing software program, or on that party's
+creation and use of derivative works of that GPL'ed program.  However, if a
+party uses that program without
+complying with the GPLv2, then Company \compA{} can assert both copyright
+infringement claims against the non-GPLv2-compliant party and
 infringement of the patent, because the implied patent license only
 extends to use of the software in accordance with the GPLv2. Further, if
-Company \compB{} distributes a competitive advanced Web browsing program,
-Company \compA{} is free to assert its patent against any user or
+Company \compB{} distributes a competitive advanced Web browsing program 
+that is not a derivative work of Company \compA{}'s GPL'ed Web browsing software
+program, Company \compA{} is free to assert its patent against any user or
 distributor of that product. It is irrelevant whether Company \compB's
-program is distributed under the GPLv2, as Company \compB{} can not grant
+program is also distributed under the GPLv2, as Company \compB{} can not grant
 implied licenses to Company \compA's patent.
 
 This result also reassures companies that they need not fear losing their