diff --git a/ppd/main.cc b/ppd/main.cc
index 1b87a6b0..2d6937b0 100644
--- a/ppd/main.cc
+++ b/ppd/main.cc
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2023-present, OpenAtom Foundation, Inc.  All rights reserved.
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
 #include "pd_service.h"
 
 int main(int argc, char* argv[]) {
diff --git a/ppd/pd_service.cc b/ppd/pd_service.cc
index 3bf016ba..dcffc058 100644
--- a/ppd/pd_service.cc
+++ b/ppd/pd_service.cc
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2023-present, OpenAtom Foundation, Inc.  All rights reserved.
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
 #include "pd_service.h"
 
 #include "pd_server.h"
diff --git a/ppd/pd_service.h b/ppd/pd_service.h
index 282ac3bc..37bcbf11 100644
--- a/ppd/pd_service.h
+++ b/ppd/pd_service.h
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2023-present, OpenAtom Foundation, Inc.  All rights reserved.
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
 #pragma once
 
 #include "pd.pb.h"
diff --git a/pproxy/main.cc b/pproxy/main.cc
index 9304fcb5..d325e483 100644
--- a/pproxy/main.cc
+++ b/pproxy/main.cc
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2023-present, OpenAtom Foundation, Inc.  All rights reserved.
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
 #include "proxy_service.h"
 
 int main(int argc, char* argv[]) {
diff --git a/pproxy/proxy_service.cc b/pproxy/proxy_service.cc
index 2bb4c4a3..24be1b01 100644
--- a/pproxy/proxy_service.cc
+++ b/pproxy/proxy_service.cc
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2023-present, OpenAtom Foundation, Inc.  All rights reserved.
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
 #include "proxy_service.h"
 
 namespace pikiwidb::proxy {
diff --git a/pproxy/proxy_service.h b/pproxy/proxy_service.h
index 3b6be94d..3936cb20 100644
--- a/pproxy/proxy_service.h
+++ b/pproxy/proxy_service.h
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2023-present, OpenAtom Foundation, Inc.  All rights reserved.
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
 #pragma once
 
 #include "proxy.pb.h"
diff --git a/pproxy/router.h b/pproxy/router.h
index a9981c88..fad1e6cd 100644
--- a/pproxy/router.h
+++ b/pproxy/router.h
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2023-present, OpenAtom Foundation, Inc.  All rights reserved.
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
 #pragma once
 
 #include <cstring>
diff --git a/pproxy/task_manager.cc b/pproxy/task_manager.cc
index 65207950..a21053b8 100644
--- a/pproxy/task_manager.cc
+++ b/pproxy/task_manager.cc
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2023-present, OpenAtom Foundation, Inc.  All rights reserved.
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
 #include "task_manager.h"
 
 #include <algorithm>
diff --git a/pproxy/task_manager.h b/pproxy/task_manager.h
index ad1857d2..8d70cf5e 100644
--- a/pproxy/task_manager.h
+++ b/pproxy/task_manager.h
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2023-present, OpenAtom Foundation, Inc.  All rights reserved.
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
 #pragma once
 
 #include <functional>