diff --git a/intern/cycles/kernel/bvh/bvh.h b/intern/cycles/kernel/bvh/bvh.h
index 85bfd931e6e..7cecee793c1 100644
--- a/intern/cycles/kernel/bvh/bvh.h
+++ b/intern/cycles/kernel/bvh/bvh.h
@@ -1,6 +1,5 @@
 /*
- * Adapted from code Copyright 2009-2010 NVIDIA Corporation
- * Modifications Copyright 2011, Blender Foundation.
+ * Copyright 2011-2013 Blender Foundation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/intern/cycles/kernel/bvh/bvh_types.h b/intern/cycles/kernel/bvh/bvh_types.h
index bcba6e65fe5..27729046f8d 100644
--- a/intern/cycles/kernel/bvh/bvh_types.h
+++ b/intern/cycles/kernel/bvh/bvh_types.h
@@ -1,6 +1,5 @@
 /*
- * Adapted from code Copyright 2009-2010 NVIDIA Corporation
- * Modifications Copyright 2011, Blender Foundation.
+ * Copyright 2011-2013 Blender Foundation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/intern/cycles/kernel/bvh/qbvh_nodes.h b/intern/cycles/kernel/bvh/qbvh_nodes.h
index 4d8695bedec..2ee2a393e80 100644
--- a/intern/cycles/kernel/bvh/qbvh_nodes.h
+++ b/intern/cycles/kernel/bvh/qbvh_nodes.h
@@ -12,6 +12,8 @@
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
+ *
+ * Aligned nodes intersection SSE code is adopted from Embree,
  */
 
 struct QBVHStackItem {
diff --git a/intern/cycles/kernel/bvh/qbvh_shadow_all.h b/intern/cycles/kernel/bvh/qbvh_shadow_all.h
index 3136c495b38..ae7aec2082f 100644
--- a/intern/cycles/kernel/bvh/qbvh_shadow_all.h
+++ b/intern/cycles/kernel/bvh/qbvh_shadow_all.h
@@ -1,8 +1,5 @@
 /*
- * Adapted from code Copyright 2009-2010 NVIDIA Corporation,
- * and code copyright 2009-2012 Intel Corporation
- *
- * Modifications Copyright 2011-2014, Blender Foundation.
+ * Copyright 2011-2013 Blender Foundation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/intern/cycles/kernel/bvh/qbvh_subsurface.h b/intern/cycles/kernel/bvh/qbvh_subsurface.h
index 03794e3a882..24aca96a298 100644
--- a/intern/cycles/kernel/bvh/qbvh_subsurface.h
+++ b/intern/cycles/kernel/bvh/qbvh_subsurface.h
@@ -1,8 +1,5 @@
 /*
- * Adapted from code Copyright 2009-2010 NVIDIA Corporation,
- * and code copyright 2009-2012 Intel Corporation
- *
- * Modifications Copyright 2011-2014, Blender Foundation.
+ * Copyright 2011-2013 Blender Foundation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/intern/cycles/kernel/bvh/qbvh_traversal.h b/intern/cycles/kernel/bvh/qbvh_traversal.h
index f82ff661495..a1e154d6dcf 100644
--- a/intern/cycles/kernel/bvh/qbvh_traversal.h
+++ b/intern/cycles/kernel/bvh/qbvh_traversal.h
@@ -1,8 +1,5 @@
 /*
- * Adapted from code Copyright 2009-2010 NVIDIA Corporation,
- * and code copyright 2009-2012 Intel Corporation
- *
- * Modifications Copyright 2011-2014, Blender Foundation.
+ * Copyright 2011-2013 Blender Foundation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/intern/cycles/kernel/bvh/qbvh_volume.h b/intern/cycles/kernel/bvh/qbvh_volume.h
index aff9f559ab8..db9779351d2 100644
--- a/intern/cycles/kernel/bvh/qbvh_volume.h
+++ b/intern/cycles/kernel/bvh/qbvh_volume.h
@@ -1,8 +1,5 @@
 /*
- * Adapted from code Copyright 2009-2010 NVIDIA Corporation,
- * and code copyright 2009-2012 Intel Corporation
- *
- * Modifications Copyright 2011-2014, Blender Foundation.
+ * Copyright 2011-2013 Blender Foundation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/intern/cycles/kernel/bvh/qbvh_volume_all.h b/intern/cycles/kernel/bvh/qbvh_volume_all.h
index 5d9b2edb4ba..88f1f764e4c 100644
--- a/intern/cycles/kernel/bvh/qbvh_volume_all.h
+++ b/intern/cycles/kernel/bvh/qbvh_volume_all.h
@@ -1,8 +1,5 @@
 /*
- * Adapted from code Copyright 2009-2010 NVIDIA Corporation,
- * and code copyright 2009-2012 Intel Corporation
- *
- * Modifications Copyright 2011-2014, Blender Foundation.
+ * Copyright 2011-2013 Blender Foundation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/intern/cycles/kernel/geom/geom.h b/intern/cycles/kernel/geom/geom.h
index 3605394f182..24ced934c8b 100644
--- a/intern/cycles/kernel/geom/geom.h
+++ b/intern/cycles/kernel/geom/geom.h
@@ -1,6 +1,5 @@
 /*
- * Adapted from code Copyright 2009-2010 NVIDIA Corporation
- * Modifications Copyright 2011, Blender Foundation.
+ * Copyright 2011-2013 Blender Foundation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/intern/cycles/kernel/geom/geom_motion_triangle.h b/intern/cycles/kernel/geom/geom_motion_triangle.h
index dabba3fb1f0..3cbe59aaece 100644
--- a/intern/cycles/kernel/geom/geom_motion_triangle.h
+++ b/intern/cycles/kernel/geom/geom_motion_triangle.h
@@ -1,6 +1,5 @@
 /*
- * Adapted from code Copyright 2009-2010 NVIDIA Corporation
- * Modifications Copyright 2011, Blender Foundation.
+ * Copyright 2011-2013 Blender Foundation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/intern/cycles/kernel/geom/geom_triangle.h b/intern/cycles/kernel/geom/geom_triangle.h
index 8bd01e1008d..17538872ead 100644
--- a/intern/cycles/kernel/geom/geom_triangle.h
+++ b/intern/cycles/kernel/geom/geom_triangle.h
@@ -1,6 +1,5 @@
 /*
- * Adapted from code Copyright 2009-2010 NVIDIA Corporation
- * Modifications Copyright 2011, Blender Foundation.
+ * Copyright 2011-2013 Blender Foundation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.