diff --git a/lib/elements/dom-module.js b/lib/elements/dom-module.js
index 4f68eb4026..76b801ebe5 100644
--- a/lib/elements/dom-module.js
+++ b/lib/elements/dom-module.js
@@ -14,12 +14,25 @@ import { strictTemplatePolicy } from '../utils/settings.js';
 
 let modules = {};
 let lcModules = {};
+/**
+ * Sets a dom-module into the global registry by id.
+ *
+ * @param {string} id dom-module id
+ * @param {DomModule} module dom-module instance
+ * @return {void}
+ */
 function setModule(id, module) {
   // store id separate from lowercased id so that
   // in all cases mixedCase id will stored distinctly
   // and lowercase version is a fallback
   modules[id] = lcModules[id.toLowerCase()] = module;
 }
+/**
+ * Retrieves a dom-module from the global registry by id.
+ *
+ * @param {string} id dom-module id
+ * @return {DomModule!}
+ */
 function findModule(id) {
   return modules[id] || lcModules[id.toLowerCase()];
 }
@@ -133,7 +146,7 @@ export class DomModule extends HTMLElement {
     id = id || this.id;
     if (id) {
       // Under strictTemplatePolicy, reject and null out any re-registered
-      // dom-module since it is ambiguous whether first-in or last-in is trusted 
+      // dom-module since it is ambiguous whether first-in or last-in is trusted
       if (strictTemplatePolicy && findModule(id) !== undefined) {
         setModule(id, null);
         throw new Error(`strictTemplatePolicy: dom-module ${id} re-registered`);
diff --git a/lib/utils/boot.js b/lib/utils/boot.js
index 4b8c6cdc87..d2bce39263 100644
--- a/lib/utils/boot.js
+++ b/lib/utils/boot.js
@@ -15,7 +15,7 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
  *
  * @param {string} prop Property name
  * @param {?Object} obj Reference object
- * @return {string} Dereferenced value
+ * @return {string} Potentially renamed property name
  */
 window.JSCompiler_renameProperty = function(prop, obj) {
   return prop;
diff --git a/lib/utils/debounce.js b/lib/utils/debounce.js
index ba41f61aec..eac7dd0ee8 100644
--- a/lib/utils/debounce.js
+++ b/lib/utils/debounce.js
@@ -76,7 +76,7 @@ export class Debouncer {
    * called once. Add this method to a custom element:
    *
    * ```js
-   * import {microtask} from '@polymer/polymer/lib/utils/async.js';
+   * import {microTask} from '@polymer/polymer/lib/utils/async.js';
    * import {Debouncer} from '@polymer/polymer/lib/utils/debounce.js';
    * // ...
    *
diff --git a/lib/utils/templatize.js b/lib/utils/templatize.js
index de2908d700..a28bae35c6 100644
--- a/lib/utils/templatize.js
+++ b/lib/utils/templatize.js
@@ -170,6 +170,7 @@ class TemplateInstanceBase extends base {
   /**
    * Override point for adding custom or simulated event handling.
    *
+   * @override
    * @param {!Node} node Node to add event listener to
    * @param {string} eventName Name of event
    * @param {function(!Event):void} handler Listener function to add
@@ -247,6 +248,7 @@ class TemplateInstanceBase extends base {
    * textContent bindings while children are "hidden" and cache in
    * private storage for later retrieval.
    *
+   * @override
    * @param {!Node} node The node to set a property on
    * @param {string} prop The property to set
    * @param {*} value The value to set
diff --git a/polymer-element.js b/polymer-element.js
index 7188e01b73..a79d5293c9 100644
--- a/polymer-element.js
+++ b/polymer-element.js
@@ -25,6 +25,7 @@ export { html } from './lib/utils/html-tag.js';
  * @summary Custom element base class that provides the core API for Polymer's
  *   key meta-programming features including template stamping, data-binding,
  *   attribute deserialization, and property change observation
+ * @const
  */
 export const PolymerElement = ElementMixin(HTMLElement);